V/154/sdss16

Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020) ReadMe+ftp Data Release 16 (469,050,976 primary sources plus 325,277,739 secondary sources) (original column names in green) (1231051050 rows)

-c=007.217547 -01.047379, eq=ICRS, rs=2

Post annotation about this record

Note:

Column	Value		Explain   (UCD)
_r	0.002	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21118	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5630	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61620	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5981	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26737920	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36285375	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237667171318694084		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217547	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047379	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237667171318693888		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623618		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.505	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.061	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.528	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.643	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.576	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.481	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.074	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.027	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.021	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.023	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	20.088	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	20.129	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.024	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.870	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.269	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.503	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.327	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.255	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.253	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.155	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.455	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	0.937	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	0.884	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	10.114	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	2.492	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	1.125	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.017	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	3.835	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.662	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.167	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.002	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.042	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.062	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.248		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.099		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.050		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.906		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	62.8	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	61.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	17.1	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	42.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	137.2	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	411075072		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275280592896		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	4503874907963906		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.062	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.061	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.00	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.12	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.01	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.338	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.022	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.504	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.605	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.549	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.531	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.074	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.031	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.018	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53352.1329	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53352.1346	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53352.1312	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53352.1321	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53352.1337	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	5052-301-1-0157-0196		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53352.1329	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.029	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21045	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5381	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61546	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5732	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26737551	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284636	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663782589956288		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217544	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047372	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663782589956096		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	299136150803202		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.630	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.017	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.465	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.581	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.522	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.614	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.065	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.029	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.018	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.027	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	27.388	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.813	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	19.593	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	17.929	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	16.654	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	2.772	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	6.648	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.303	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.304	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.364	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	258.402	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.905	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	4.615	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	8.929	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	7.125	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.062	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.694	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	3.777	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	88.332	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	19.109	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.085	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.015	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.001	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.010	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.123		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.544		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.576		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.999		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	55.5	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	40.4	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	96.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	107.5	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	104.4	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199405769985		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275171541504		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275171541504		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874790490626		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	17867491906050		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.055	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.059	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.09	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.04	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.10	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.01	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.383	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.991	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.459	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.568	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.513	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.607	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.068	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.029	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.010	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.013	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52963.1619	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52963.1635	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52963.1602	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52963.1610	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52963.1627	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4263-301-1-0164-0192		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52963.1619	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.034	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20908	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5567	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61410	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5918	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26736080	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36285031	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663275783422122		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217538	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047377	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663275783421952		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964622850		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.945	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.056	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.554	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.586	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.540	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.839	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.092	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.030	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.014	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.030	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.028	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.209	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.651	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.640	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.552	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.293	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.167	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.059	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.017	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.024	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.058	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.331	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.120	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.204	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.351	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	0.051	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.122	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.065	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.032	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.059	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.670	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.649	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.047	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.049	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.088	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.051		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.300		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.050		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	102.7	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	36.1	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	22.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	167.8	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	69.9	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388991489		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	411074560		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275154763776		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375170		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.063	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.066	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.08	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.01	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.19	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.03	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.07	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.622	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.988	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.549	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.583	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.524	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.887	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.089	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.032	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52910.3114	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52910.3131	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52910.3098	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52910.3106	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52910.3122	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4145-301-1-0158-0170		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52910.3114	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.035	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21154	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5297	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61656	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5648	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26738650	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284497	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666539951489238		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217548	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047369	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666539951489024		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.803	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.807	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.473	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.569	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.520	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.126	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.069	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.036	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.018	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.018	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.875	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.072	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.476	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.626	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.602	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.980	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.173	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.075	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.024	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.028	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	11.305	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.028	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.218	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.046	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.121	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.097	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.138	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.018	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.026	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.007	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.008	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.001	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.265		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.736		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.819		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.549		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	134.3	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	15.8	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	52.2	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	74.2	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	70.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397381377		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280592896		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773745664		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	402685952		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.019	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.019	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.07	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.07	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.05	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237666539951489237		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.753	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.852	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.478	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.584	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.528	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.132	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.072	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.036	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53298.3157	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53298.3174	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53298.3141	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53298.3149	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53298.3165	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4905-301-1-0050-0214		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53298.3157	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.037	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21376	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5656	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61878	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.6006	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26740238	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36285655	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666381051199630		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217557	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047379	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666381051199488		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	17661174092288		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	22.937	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.064	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.517	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.622	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.576	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.583	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.132	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.046	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.023	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.024	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.804	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.923	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.097	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.621	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.477	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	5.316	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.632	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.141	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.053	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.066	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	1.265	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.853	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	3.961	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.384	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.618	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	1.171	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.841	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.593	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.051	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.076	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.809	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.032	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.338	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.004	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.133	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.085		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.050		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.388		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.510		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	180.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	33.5	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	118.1	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	106.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	107.1	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199389016065		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	17867332554752		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874782134784		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375168		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.033	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.034	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.18	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.06	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.09	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.20	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.07	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.127	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.974	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.382	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.550	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.477	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.752	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.137	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.043	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.013	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.018	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53286.3126	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53286.3142	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53286.3109	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53286.3117	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53286.3134	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4868-301-1-0256-0142		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53286.3126	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.048	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20820	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5527	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61322	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5878	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26735330	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284851	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237667171318694085		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217534	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047376	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237667171318693888		The field this object is in (meta.note) (ID_FIELD)
mode	1		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	1		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912960		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.536	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.035	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.526	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.641	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.577	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.475	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.073	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.027	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.021	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.023	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.919	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.335	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.619	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.687	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.646	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.837	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.137	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.046	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.021	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.022	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	3.741	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	0.877	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	0.885	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	4.829	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	2.853	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.080	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.017	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	2.994	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.001	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.000	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.052	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.067	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.144		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.273		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.531		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.874		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	73.2	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	46.7	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	17.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	41.9	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	137.4	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	411075072		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874907963392		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	402686464		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.011	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.011	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.05	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.08	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.01	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237667171318694084		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.675	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.081	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.537	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.637	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.572	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.420	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.074	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.027	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	257		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53352.1329	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53352.1346	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53352.1312	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53352.1321	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53352.1337	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	5052-301-1-0157-0197		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53352.1329	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.048	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20906	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5296	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61408	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5647	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26736394	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284293	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663739639759027		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217538	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047369	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663739639758848		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912960		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.017	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.200	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.424	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.561	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.536	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.766	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.096	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.034	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.016	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.022	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.488	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.903	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.387	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.605	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.534	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.738	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.293	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.160	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.056	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.043	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	7.359	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.969	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.627	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.435	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	7.196	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.672	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.037	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	1.040	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.668	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.155	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.062	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.082	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.078	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.250		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.238		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	51.2	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	72.9	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	139.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	137.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	113.8	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154764032		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773745664		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375680		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.026	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.027	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.06	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.06	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.08	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.350	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.198	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.419	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.557	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.528	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.856	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.098	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.035	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52962.1553	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52962.1570	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52962.1537	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52962.1545	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52962.1561	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4253-301-1-0156-0179		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52962.1553	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.049	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21413	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5396	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61915	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5747	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26740893	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284978	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666634463707272		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217559	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047372	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666634463707136		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.422	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.828	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.499	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.630	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.538	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.947	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.131	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.042	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.022	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.022	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.604	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.984	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.527	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.630	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.587	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.928	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.296	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.093	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.031	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.034	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.583	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.661	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.610	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.398	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.600	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.364	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.188	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.042	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.078	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	4.179	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.121	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.103	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.031	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.070	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.186		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.085		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.450		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.150		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	19.7	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	170.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	106.7	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	44.8	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	37.9	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388960001		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154763776		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712896		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342400		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.031	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.028	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.02	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.06	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.06	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.20	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.03	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.293	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.812	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.481	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.611	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.525	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.883	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.133	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.042	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.013	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.018	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53312.2223	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53312.2239	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53312.2206	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53312.2214	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53312.2231	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4927-301-1-0400-0136		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53312.2223	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.051	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21002	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5171	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61503	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5521	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26737414	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284028	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666539951489237		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217542	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047366	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666539951489024		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623106		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.842	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.825	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.493	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.569	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.519	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.113	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.070	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.037	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.018	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.018	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.209	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.048	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.485	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.641	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.588	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.851	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.146	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.063	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.018	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.024	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	11.305	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.051	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.226	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.047	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.124	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.096	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.155	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.020	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.029	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.667	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.015	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.070	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.400		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.600		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.830		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.585		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	144.2	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	15.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	63.1	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	74.1	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	70.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280592896		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275146375168		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375170		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.054	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.060	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.03	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.06	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.05	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.07	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.01	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.778	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.841	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.479	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.584	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.516	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.867	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.073	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.038	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53298.3157	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53298.3174	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53298.3141	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53298.3149	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53298.3165	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4905-301-1-0050-0213		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53298.3157	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.052	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21139	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5123	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61641	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5473	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26738725	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284009	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666660234231979		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217547	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047365	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666660234231808		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.483	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.092	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.402	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.597	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.514	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.668	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.081	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.034	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.016	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.027	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	21.899	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.012	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.381	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.642	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.601	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.360	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.181	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.073	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.023	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.033	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	18.020	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.515	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.632	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.502	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.478	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.240	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.137	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.045	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.028	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.666	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.211	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.162	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.043	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.418		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.094		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.410		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	1.000		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.781		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	0.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	107.0	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	166.9	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	74.2	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	103.8	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146375168		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874782134272		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280592896		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.026	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.027	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.14	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.00	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.07	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.736	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.061	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.353	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.558	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.482	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.804	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.082	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.035	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.013	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.017	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53314.2235	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53314.2252	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53314.2219	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53314.2227	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53314.2244	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4933-301-1-0411-0171		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53314.2235	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.052	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20782	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5570	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61284	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5921	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26734933	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284939	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663713870020798		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217533	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047377	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663713870020608		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912960		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.398	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.028	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.508	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.512	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.518	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.716	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.074	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.036	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.032	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.020	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.220	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.174	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.489	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.632	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.584	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.356	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.148	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.051	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.015	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.020	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.177	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.105	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	0.915	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.044	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.152	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.072	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.017	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.025	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.661	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.004	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.107	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.022	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.097		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.379		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.650		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	12.2	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	45.2	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	0.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	24.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	132.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154764288		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874782134784		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	402685952		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.014	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.016	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.05	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.01	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.03	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.01	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.09	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.11	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237663713870020797		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.612	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.046	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.465	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.539	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.485	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.754	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.076	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.028	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.014	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52959.1821	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52959.1837	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52959.1804	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52959.1813	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52959.1829	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4247-301-1-0157-0190		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52959.1821	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.053	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20784	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5513	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61286	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5864	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26735020	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284783	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663524910858390		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217533	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047375	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663524910858240		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964754178		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.512	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.014	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.524	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.590	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.532	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.732	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.078	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.035	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.023	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.614	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.148	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.469	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.620	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.555	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.522	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.166	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.061	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.019	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.026	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.186	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.104	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.221	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.260	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.214	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	1.005	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.035	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.062	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.670	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.058	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.097	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.046	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.017	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.150		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.150		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.960		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.839		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	2.9	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	69.1	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	167.7	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	47.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	66.3	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	402685952		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275146375168		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280723968		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.055	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.061	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.07	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.01	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.07	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.01	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.753	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.035	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.481	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.568	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.516	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.003	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.083	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.034	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.020	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52935.2387	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52935.2403	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52935.2370	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52935.2378	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52935.2395	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4203-301-1-0453-0150		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52935.2387	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.056	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20758	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5616	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61260	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5967	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26734657	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36285044	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663477663006867		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217532	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047378	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663477663006720		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623106		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.520	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.225	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.384	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.526	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.510	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.703	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.109	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.040	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.024	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.023	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	21.786	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.971	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.394	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.620	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.562	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.265	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.153	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.056	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.018	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.025	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	18.020	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	18.020	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.561	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.321	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.277	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.851	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.033	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.054	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	4.874	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	2.620	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.107	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.001	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	1.000		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.573		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.296		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.748		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.493		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	116.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	180.0	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	0.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	52.4	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	167.3	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	402687232		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275146375168		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280723970		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.060	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.063	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.04	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.06	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.31	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.08	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	22.903	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.195	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.403	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.548	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.531	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.435	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.106	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.033	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52931.2417	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52931.2434	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52931.2401	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52931.2409	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52931.2425	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4192-301-1-0404-0147		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52931.2417	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.059	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20896	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.6123	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61398	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.6474	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26735301	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36286536	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666406834962578		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217537	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047392	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666406834962432		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.615	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.872	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.620	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.542	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.516	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.316	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.098	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.041	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.020	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.023	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.351	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.482	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.511	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.635	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.585	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.087	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.450	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.088	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.034	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.032	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	7.358	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.969	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.803	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.718	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.595	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.271	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.037	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.061	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	6.961	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.189	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.406	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.991		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.099		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.050		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.388		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.509		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	119.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	15.1	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	32.2	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	70.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	121.9	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154764032		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773745664		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375168		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.034	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.035	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.16	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.10	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.12	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.007	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.763	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.495	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.469	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.422	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.392	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.099	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.041	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.013	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.017	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53288.2711	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53288.2728	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53288.2694	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53288.2703	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53288.2719	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4874-301-1-0469-0146		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53288.2711	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.062	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21460	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.6012	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61962	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.6362	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26740571	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36286692	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666338111160540		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217561	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047389	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666338111160320		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	103347650820		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.970	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.970	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u		deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g		deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r		deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i		deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z		deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	389		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146342788		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	292734250925425060		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268435844		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	268435844		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.025	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.023	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.02	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.10	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.30	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.11	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.11	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237666338111160539		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	32		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53272.3441	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53272.3458	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53272.3425	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53272.3433	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53272.3450	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4858-301-1-0403-0220		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53272.3441	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.062	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21174	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5027	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61676	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5378	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26739160	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283778	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666497004044468		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217549	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047362	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666497004044288		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.537	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.150	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.396	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.604	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.501	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.139	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.120	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.032	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.020	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.028	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.410	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.353	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.506	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.624	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.595	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.568	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.211	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.060	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.021	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.028	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	7.361	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	7.358	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.314	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.557	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.570	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.090	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.045	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.036	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.677	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.095	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.122	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.108	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.026	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.522		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.210		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.134		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.416		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.956		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	18.2	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	168.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	47.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	42.9	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	54.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280594176		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874782134272		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	268468224		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.020	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.020	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.00	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.05	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.24	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.05	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237666497004044467		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.963	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.165	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.369	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.573	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.493	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.108	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.123	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.031	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53294.3187	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53294.3204	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53294.3170	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53294.3179	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53294.3195	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4895-301-1-0084-0180		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53294.3187	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.063	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20850	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5169	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61352	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5520	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26736038	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283901	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663542088564961		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217535	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047366	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663542088564736		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.790	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.991	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.459	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.651	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.536	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.015	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.083	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.033	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.016	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.022	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.498	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.966	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.494	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.675	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.577	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.894	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.161	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.067	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.028	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.029	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	7.359	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.092	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.498	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.340	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.320	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	1.002	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.181	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.031	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.042	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.666	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.366	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.048	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.085	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.103	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.386		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.984		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.161		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	47.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	12.5	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	163.9	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	71.2	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	83.5	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	18014398643733761		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146375168		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773745664		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	402685952		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.021	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.024	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.07	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.05	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.08	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.01	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237663542088564960		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.208	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.988	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.456	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.634	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.519	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.907	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.086	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.033	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52936.2301	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52936.2317	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52936.2284	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52936.2292	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52936.2309	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4207-301-1-0420-0225		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52936.2301	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.065	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20803	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.6081	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61305	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.6432	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26734503	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36286346	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663275783422123		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217533	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047391	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663275783421952		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.115	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.052	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.554	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.587	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.542	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.800	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.092	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.030	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.014	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.030	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	25.851	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.409	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.684	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.665	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.607	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.801	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.187	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.056	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.017	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.026	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.584	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.298	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.084	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.199	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.313	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.107	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.063	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.033	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.048	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.000	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.183	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.001	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.042	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.073	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.095		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.097		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.589		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.151		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	72.5	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	47.4	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	123.3	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	169.4	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	69.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	411074560		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874782134272		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	268468224		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.015	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.015	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.08	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.13	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.06	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.01	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237663275783422122		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.501	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.046	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.552	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.587	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.535	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.659	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.094	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.030	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52910.3114	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52910.3131	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52910.3098	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52910.3106	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52910.3122	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4145-301-1-0158-0171		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52910.3114	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.069	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20865	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5081	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61367	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5432	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26736276	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283673	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663202769830058		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217536	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047363	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663202769829888		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623618		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.233	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.185	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.480	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.616	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.516	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.517	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.093	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.030	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.024	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	20.040	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.465	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.595	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.040	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.490	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.613	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.855	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.793	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.162	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	1.282	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.692	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.369	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	8.232	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.344	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	1.931	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.079	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	2.686	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.043	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.662	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.458	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.105	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.069	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.604		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.399		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.507		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.887		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.250		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	42.8	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	34.0	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	46.9	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	79.6	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	81.0	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199414157569		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275305775616		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275163152384		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874798879234		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275297370114		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.057	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.061	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.01	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.06	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.02	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	22.862	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.076	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.486	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.623	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.523	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.389	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.087	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.033	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.017	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52908.3020	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52908.3037	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52908.3003	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52908.3012	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52908.3028	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4128-301-1-0171-0170		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52908.3020	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.069	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21412	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5099	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61914	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5449	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26741241	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284166	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663503433203842		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217559	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047364	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663503433203712		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	26.204	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.385	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.449	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.536	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.451	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.695	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.155	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.049	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.022	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.024	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.650	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.031	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.633	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.629	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.530	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	2.729	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.248	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.103	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.029	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.038	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.971	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	18.018	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.941	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.065	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.794	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.225	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.070	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.100	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.029	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.874	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.079	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.053		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.450		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.437		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.270		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.323		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	112.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	86.1	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	67.4	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	44.9	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	87.2	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280594176		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503599895838720		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375168		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.046	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.045	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.13	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.28	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.00	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.01	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.03	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	26.432	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.372	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.481	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.545	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.456	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.565	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.153	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.048	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.014	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.019	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	2		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52934.2340	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52934.2356	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52934.2323	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52934.2332	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52934.2348	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4198-301-1-0410-0130		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52934.2340	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.071	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21252	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4959	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61754	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5309	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26739952	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283654	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666299463008463		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217552	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047360	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666299463008256		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	72057663025840384		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.302	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.795	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.429	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.594	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.518	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.922	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.076	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.031	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.025	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.075	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.167	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.494	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.633	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.583	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.529	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.183	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.055	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.017	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.024	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	7.358	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.095	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.385	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.461	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.279	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.130	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.080	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.038	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.040	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	23.817	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.009	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.030	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.056	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.079		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	1.000		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.749		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.650		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	152.6	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	168.1	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	71.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	75.6	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	71.3	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	18014398652122369		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	72057594449002496		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773745664		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	268468224		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.019	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.018	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.03	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.00	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.14	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.04	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.04	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237666299463008462		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.475	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.877	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.430	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.598	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.522	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.966	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.082	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.029	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53270.2941	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53270.2957	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53270.2924	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53270.2932	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53270.2949	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4849-301-1-0503-0207		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53270.2941	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.071	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21466	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5147	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61968	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5497	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26741678	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284341	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666338111094938		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217561	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047365	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666338111094784		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623106		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.691	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.395	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.514	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.568	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.504	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.168	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.159	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.037	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.028	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.892	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	25.054	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.528	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.675	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.599	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.808	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	1.665	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.065	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.018	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.023	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.054	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.218	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.129	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.288	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.043	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.217	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.030	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.036	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	1.086	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.000	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.100	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.079	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.654		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.290		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.216		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.516		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.197		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	79.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	112.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	106.7	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	110.2	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	102.8	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280592896		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275146375168		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375170		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.058	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.062	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.03	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.05	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.23	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.07	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.927	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.349	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.503	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.580	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.505	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.149	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.155	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.038	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53272.3437	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53272.3454	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53272.3421	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53272.3429	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53272.3445	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4858-301-1-0402-0154		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53272.3437	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.072	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20829	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5085	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61331	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5435	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26735944	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283653	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663542088564960		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217535	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047363	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663542088564736		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623106		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.657	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.010	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.469	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.652	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.540	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.022	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.084	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.033	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.016	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.022	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.918	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.968	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.509	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.690	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.566	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.409	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.147	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.059	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.018	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.024	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	11.305	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.965	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.463	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.361	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.299	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.818	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.162	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.035	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.032	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.666	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.374	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.063	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.084	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.108	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.200		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	1.000		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.148		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	39.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	13.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	163.8	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	70.9	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	84.2	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	18014398643733761		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146375168		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275146375168		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375170		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.053	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.059	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.05	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.05	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.05	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.03	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.01	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.05	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.968	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.964	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.435	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.613	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.491	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.014	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.086	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.033	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52936.2301	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52936.2317	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52936.2284	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52936.2292	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52936.2309	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4207-301-1-0420-0224		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52936.2301	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.077	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21542	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.6100	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.62044	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.6450	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26741214	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36286998	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666338111094939		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217564	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047392	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666338111094784		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.296	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.170	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.487	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.564	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.504	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.119	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.130	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.036	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.028	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.833	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.833	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.472	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.659	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.596	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	2.071	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.509	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.101	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.037	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.044	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.174	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.258	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.141	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.290	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.092	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.322	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.023	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.025	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.030	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.098	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.098	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.004	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.065	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.326		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.196		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.249		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.548		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.257		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	124.3	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	40.7	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	105.4	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	75.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	103.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280592896		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773745664		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	268468224		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.025	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.022	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.03	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.09	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.05	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.17	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.07	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237666338111094938		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.644	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.164	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.471	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.564	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.496	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.208	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.133	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.036	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53272.3437	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53272.3454	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53272.3421	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53272.3429	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53272.3445	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4858-301-1-0402-0155		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53272.3437	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.079	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20698	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5182	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61200	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5533	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26734636	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283813	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663524910858391		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217529	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047366	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663524910858240		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	17661174087936		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.390	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.008	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.517	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.589	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.532	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.791	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.078	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.035	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.021	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.638	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.223	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.575	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.645	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.604	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.511	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.160	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.069	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.025	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.034	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.143	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.089	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.208	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.226	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.193	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.151	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.031	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.059	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.056	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.001	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.079	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.034	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.006	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.146		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.069		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.235		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.999		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.553		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	59.5	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	75.5	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	167.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	47.1	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	67.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	402685952		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773745664		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	17867466768384		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.017	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.020	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.06	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.06	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.01	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237663524910858390		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.426	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.028	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.494	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.572	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.522	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.783	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.083	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.033	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52935.2387	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52935.2403	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52935.2370	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52935.2378	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52935.2395	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4203-301-1-0453-0151		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52935.2387	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.082	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20613	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5380	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61115	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5731	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26733619	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36284282	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663782589956289		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217526	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047372	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663782589956096		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	17661174092544		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.466	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.985	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.459	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.582	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.524	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.612	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.064	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.029	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.018	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.026	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.896	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.813	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.339	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.606	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.384	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	3.934	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.345	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.086	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.043	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.050	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	7.360	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.913	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	4.315	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	0.787	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.013	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.055	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.079	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.014	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.054	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.001	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.000	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.004	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.065		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.770		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.249		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.679		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	44.1	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	47.4	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	57.7	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	107.6	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	104.5	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199405769985		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275305759232		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874798912000		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	285245952		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	17592614031872		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.010	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.010	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.08	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.02	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237663782589956288		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.710	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.010	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.476	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.575	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.522	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.614	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.067	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.026	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.010	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.014	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52963.1619	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52963.1635	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52963.1602	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52963.1610	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52963.1627	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4263-301-1-0164-0193		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52963.1619	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.089	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20681	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5055	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61182	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5406	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26734627	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283452	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663310143357076		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217528	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047363	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663310143356928		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.787	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.097	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.542	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.662	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.488	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.576	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.146	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.091	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.029	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.038	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.172	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.589	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.512	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.674	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.433	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	2.246	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.302	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.105	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.051	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.061	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	7.361	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	7.360	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	7.361	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	3.012	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.776	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.176	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.111	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.022	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	2.449	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.001	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.115	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.201	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.220		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.265		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.492		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.243		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.050		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	112.5	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	54.8	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	61.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	164.6	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	103.9	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	402687232		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503599895840000		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375168		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.053	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.057	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.08	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.02	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.03	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.07	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.07	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.021	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.130	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.544	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.662	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.495	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.500	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.149	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.053	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.019	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.019	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1041		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	2		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52911.3160	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52911.3177	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52911.3144	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52911.3152	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52911.3169	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4153-301-1-0161-0148		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52911.3160	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.095	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20697	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4950	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61198	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5301	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26734901	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283179	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663477663006868		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217529	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047360	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663477663006720		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988044032		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.655	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.168	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.372	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.526	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.511	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.775	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.104	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.039	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.024	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.023	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.396	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.258	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.347	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.614	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.568	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.532	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.242	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.065	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.024	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.030	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	11.307	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	11.307	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.516	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.315	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.286	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.132	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.032	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.059	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	2.957	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.000	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.105	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.093		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.407		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.243		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.684		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.509		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	158.7	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	105.5	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	10.2	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	52.4	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	166.9	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	411076352		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773745664		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	402817024		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.021	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.023	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.08	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.13	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.18	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.02	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.01	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237663477663006867		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.893	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.195	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.378	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.538	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.520	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.897	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.108	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.032	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52931.2417	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52931.2434	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52931.2401	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52931.2409	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52931.2425	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4192-301-1-0404-0148		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52931.2417	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.099	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20744	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4839	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61245	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5190	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26735466	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36282914	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663202769830059		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217531	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047357	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663202769829888		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912960		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.256	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.181	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.480	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.620	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.510	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.529	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.093	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.030	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.024	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.542	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.096	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.507	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.686	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.568	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.541	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.180	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.063	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.022	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.030	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.583	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.458	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.386	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.206	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	5.037	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.202	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.106	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.031	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	1.625	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.384	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.598	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.108	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.069	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.399		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.232		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.538		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.750		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.082		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	22.7	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	38.3	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	45.3	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	79.8	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	81.2	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199414158593		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	45036271579480576		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874790522880		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	293634560		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	419463680		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.019	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.019	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.05	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.06	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.11	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237663202769830058		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.339	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.122	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.447	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.606	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.497	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.585	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.093	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.032	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.017	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52908.3020	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52908.3037	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52908.3003	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52908.3012	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52908.3028	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4128-301-1-0171-0171		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52908.3020	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.102	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21419	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4724	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61920	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5075	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26741757	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283151	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666299463008462		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217559	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047353	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666299463008256		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623106		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.156	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.818	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.427	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.593	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.515	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.877	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.077	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.030	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.025	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.350	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.094	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.436	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.607	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.567	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.663	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.975	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.553	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.668	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.604	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	27.917	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.099	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.413	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.466	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.274	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.115	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.073	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	3.820	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.035	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	12.736	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.002	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.078	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.068	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	1.000		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.839		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.691		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	150.1	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	15.8	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	72.2	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	74.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	71.2	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	276856832		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275146375168		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375170		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.059	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.062	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.01	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.11	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.02	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.04	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.481	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.875	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.408	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.586	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.513	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.616	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.083	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.030	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53270.2941	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53270.2957	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53270.2924	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53270.2932	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53270.2949	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4849-301-1-0503-0206		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53270.2941	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.103	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21356	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4674	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61857	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5025	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26741240	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36282964	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666497004044467		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217556	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047352	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666497004044288		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623106		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.512	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.167	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.394	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.603	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.502	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.132	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.122	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.032	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.020	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.028	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.023	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.944	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.402	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.579	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.514	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.558	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.378	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.821	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.672	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.661	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	18.023	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	18.017	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.316	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.544	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.631	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.934	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	4.041	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.065	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.681	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.779	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.142	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.112	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.079	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.348		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.079		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.454		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.998		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	30.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	155.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	48.4	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	43.1	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	54.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280594176		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275154763776		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375170		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.060	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.061	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.01	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.02	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.05	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.28	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.03	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.378	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.048	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.359	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.568	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.479	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.676	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.111	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.032	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53294.3187	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53294.3204	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53294.3170	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53294.3179	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53294.3195	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4895-301-1-0084-0179		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53294.3187	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.106	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20516	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5105	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61018	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5456	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26733067	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283454	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660007330283682		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217521	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047364	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660007330283520		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623618		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.141	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.040	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.468	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.620	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.505	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.580	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.104	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.039	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.023	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.026	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.619	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.942	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.475	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.625	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.581	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.639	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.164	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.067	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.019	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.029	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	11.303	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	11.305	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	3.337	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.361	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	9.480	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	2.171	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.045	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	1.620	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	23.719	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.168	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.002	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.051	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.102	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.474		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.131		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	1.000		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.095		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	149.7	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	40.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	121.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	73.2	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	96.3	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388992769		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146376448		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275146375680		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275297337858		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.059	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.071	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.22	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.01	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.00	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.05	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	22.878	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.034	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.455	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.600	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.501	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.483	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.107	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.037	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.018	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52557.3262	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52557.3278	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52557.3245	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52557.3253	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52557.3270	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3384-301-1-0417-0162		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52557.3262	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.115	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20556	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4883	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61057	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5234	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26733697	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36282883	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663713870020797		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217523	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047358	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663713870020608		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623618		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.432	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.101	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.519	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.512	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.519	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.715	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.078	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.036	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.032	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.020	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.224	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.117	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.489	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.643	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.580	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.557	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.114	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.040	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.013	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.017	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.107	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	3.159	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	0.889	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.027	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.129	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	1.539	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.015	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.025	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.670	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.114	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.137	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.029	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.249		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.410		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.850		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	11.7	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	31.4	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	0.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	25.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	132.5	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154764288		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275154764288		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375170		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.054	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.060	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.03	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.02	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.21	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.08	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.355	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.068	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.490	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.554	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.508	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.717	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.077	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.030	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.010	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.014	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52959.1821	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52959.1837	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52959.1804	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52959.1813	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52959.1829	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4247-301-1-0157-0189		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52959.1821	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.134	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20439	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4785	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60941	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5136	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26732755	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36282519	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660024506941629		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217518	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047355	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660024506941440		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623106		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.885	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.958	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.409	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.606	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.526	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.912	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.074	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.037	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.017	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.025	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.333	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.913	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.419	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.655	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.568	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.519	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.121	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.048	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.015	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.022	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	11.305	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.551	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.119	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.066	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.230	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.386	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	1.087	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.024	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.050	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.662	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.204	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.058	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.042	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.028	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.099		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.204		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.576		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	59.6	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	44.1	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	44.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	46.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	136.8	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199389009153		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275288981504		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275288981504		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375170		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.057	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.067	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.03	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.01	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.01	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.01	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.177	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.927	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.402	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.595	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.512	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.881	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.075	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.031	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52558.3390	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52558.3406	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52558.3373	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52558.3381	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52558.3398	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3388-301-1-0368-0189		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52558.3390	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.135	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.21724	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4634	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.62225	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.4984	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26744642	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283153	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666338111160539		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217572	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047351	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666338111160320		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623110		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.970	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.970	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u		deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g		deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r		deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i		deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z		deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	389		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146342788		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	824902156708		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773713286		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342790		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.059	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.065	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.00	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.03	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.15	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.17	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.31	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53272.3441	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53272.3458	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53272.3425	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53272.3433	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53272.3450	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.21-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4858-301-1-0403-0219		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53272.3441	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.137	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20628	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4502	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.61129	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.4853	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26734816	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36281902	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660007330283683		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217526	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047347	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660007330283520		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912960		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.240	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.015	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.464	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.616	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.510	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.629	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.103	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.039	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.023	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.026	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.879	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.061	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.605	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.635	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.634	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.654	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.684	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.392	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.335	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.384	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	7.357	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	18.017	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.230	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.363	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.493	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.942	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.040	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.044	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	14.069	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.871	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.063	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.080	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.527		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.957		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.157		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	109.6	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	37.9	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	121.2	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	101.2	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	97.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397381377		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280594176		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773746176		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	419463680		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.022	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.024	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.05	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.18	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.06	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.09	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.06	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.05	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237660007330283682		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.394	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.049	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.487	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.613	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.526	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.720	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.107	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.037	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.018	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52557.3262	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52557.3278	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52557.3245	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52557.3253	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52557.3270	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3384-301-1-0417-0163		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52557.3262	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.138	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20425	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4761	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60926	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5112	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26732652	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36282442	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660024506941630		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217518	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047354	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660024506941440		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.839	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.959	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.408	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.603	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.521	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.924	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.074	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.037	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.017	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.025	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.166	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.964	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.484	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.634	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.576	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.731	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.129	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.052	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.017	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.026	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	18.017	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.363	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.068	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.067	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.226	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.285	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.078	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.024	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.054	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	10.861	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.170	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.008	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.051	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.017	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	1.000		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.099		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.213		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.654		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	57.1	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	46.5	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	47.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	46.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	136.3	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199389009153		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275288981504		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874916352000		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	402685952		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.014	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.014	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.00	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237660024506941629		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.077	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.949	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.425	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.598	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.522	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.871	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.075	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.028	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52558.3390	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52558.3406	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52558.3373	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52558.3381	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52558.3398	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3388-301-1-0368-0190		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52558.3390	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.139	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20222	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5331	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60724	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5682	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26730116	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283832	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660355213656192		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217509	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047370	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660355213656064		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912960		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.162	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.986	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.442	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.577	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.502	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.735	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.074	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.031	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.012	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.023	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.671	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.216	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.552	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.660	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.593	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	5.599	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.342	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.272	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.237	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.264	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	27.924	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.205	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.109	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.177	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.182	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.111	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.762	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.030	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.036	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.046	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.041	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.083	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.003	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.058		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.168		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.149		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.865		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.818		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	128.7	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	157.7	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	172.8	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	131.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	104.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199414158593		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275305775104		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874924741120		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	419463680		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275305759232		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.017	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.019	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.02	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.09	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.05	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.03	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.05	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237660355213656191		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.372	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.991	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.418	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.568	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.490	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.672	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.078	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.032	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.017	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52586.2308	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52586.2325	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52586.2292	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52586.2300	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52586.2317	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3465-301-1-0280-0128		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52586.2308	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.146	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20340	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4786	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60841	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5137	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26731849	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36282443	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660234961846462		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217514	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047355	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660234961846272		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623618		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.014	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.017	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.454	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.568	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.519	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.823	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.083	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.034	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.018	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.020	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	27.633	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	25.381	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	19.643	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	17.972	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.484	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.243	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	6.542	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.142	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.127	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.162	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.430	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	3.353	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	6.989	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.376	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.076	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	1.206	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	1.230	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.033	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	12.814	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.292	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.064	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.001	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.067	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.400		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.723		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	122.3	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	32.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	133.1	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	74.1	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	105.5	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199414157569		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275297370112		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275171541504		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874924708354		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275163152386		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.055	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.059	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.08	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.12	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.07	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.01	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.511	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.018	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.454	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.565	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.511	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.624	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.085	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.033	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52578.2222	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52578.2238	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52578.2205	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52578.2213	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52578.2230	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3437-301-1-0391-0190		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52578.2222	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.157	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20158	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5063	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60659	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5415	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26729851	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283049	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237659904250544282		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217507	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047363	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237659904250544128		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623618		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.217	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.942	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.466	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.601	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.588	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.855	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.073	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.034	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.022	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.315	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	27.630	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	19.933	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	17.866	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	16.696	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	14.909	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	1.824	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.342	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.257	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.369	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.953	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.909	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	8.506	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	7.991	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	1.587	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.595	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	2.518	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	2.011	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.324	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.661	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.172	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.030	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.106	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.279		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.654		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.804		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.866		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	31.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	42.8	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	42.2	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	14.8	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	135.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199414165761		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275163152896		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275163152384		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874924708354		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275297337858		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.053	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.054	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.00	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.05	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.06	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.04	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.203	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.905	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.450	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.592	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.573	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.875	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.074	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.033	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52552.3302	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52552.3319	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52552.3286	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52552.3294	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52552.3311	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3360-301-1-0409-0154		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52552.3302	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.172	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20240	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4558	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60741	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.4909	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26731210	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36281739	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237656906358259952		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217510	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047349	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237656906358259712		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623618		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.680	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.235	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.419	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.550	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.509	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.716	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.089	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.040	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.023	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	21.206	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	29.485	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.839	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	17.911	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	16.568	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.219	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	1.402	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.938	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.406	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.506	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	258.390	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.385	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	9.999	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	9.110	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	1.314	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	4.226	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	2.263	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	19.096	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.635	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.001	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.014	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.086	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.220		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.784		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.870		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	97.1	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	59.1	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	77.9	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	105.1	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	108.4	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199405769985		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	427852032		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275163152384		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874924708354		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275297337858		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.052	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.055	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.07	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.03	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.00	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.09	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.04	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.01	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.262	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.202	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.401	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.542	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.499	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.543	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.086	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.033	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52197.3337	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52197.3353	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52197.3320	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52197.3328	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52197.3345	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2662-301-1-0331-0240		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52197.3337	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.173	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20024	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.5137	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60525	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5489	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26728542	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36283142	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237659753910108313		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217501	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047365	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237659753910108160		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043524		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.969	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.971	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u		deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g		deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r		deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i		deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z		deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	389		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	268566916		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773844356		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	288230376420278660		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342788		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.022	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.021	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.10	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.14	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.03	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.04	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237659753910108312		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52522.3360	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52522.3377	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52522.3343	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52522.3352	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52522.3368	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3325-301-1-0156-0153		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52522.3360	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.173	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20377	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4328	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60878	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.4679	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26732739	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36281224	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660355213656191		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217516	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047342	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660355213656064		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623618		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.165	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.979	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.431	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.573	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.504	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.731	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.074	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.031	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.012	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.023	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.505	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.423	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	18.561	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	17.957	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.258	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	8.505	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.660	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.189	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.112	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.117	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	258.412	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.253	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.198	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	6.802	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	17.386	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.164	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.347	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.779	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.037	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.673	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.001	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.165	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.029	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.028	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.695		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.281		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.391		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.400		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	100.1	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	24.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	2.7	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	135.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	105.0	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199405769985		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275171557376		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275297337856		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874924708354		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275171541504		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.054	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.058	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.00	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.02	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.02	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.01	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.05	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.09	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.05	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.391	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.989	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.398	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.571	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.504	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.818	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.078	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.032	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.021	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52586.2308	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52586.2325	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52586.2292	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52586.2300	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52586.2317	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3465-301-1-0280-0127		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52586.2308	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.177	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20266	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4439	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60767	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.4790	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26731590	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36281437	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660234961846463		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217511	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047346	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660234961846272		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912960		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.927	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.984	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.447	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.572	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.517	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.792	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.081	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.034	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.018	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.020	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.163	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.054	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.190	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.616	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.470	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	4.147	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.421	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.110	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.043	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.057	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	7.359	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.408	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	3.493	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.200	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.352	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.177	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.463	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.025	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.038	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	1.749	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.241	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.029	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.048	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.331		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.785		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	150.8	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	39.8	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	105.3	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	74.1	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	105.5	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199414158593		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275297370112		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874798912000		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	419463680		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	419463168		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.021	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.020	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.09	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.07	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.09	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.02	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.04	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237660234961846462		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.140	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.996	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.451	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.573	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.514	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.887	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.084	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.032	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52578.2222	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52578.2238	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52578.2205	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52578.2213	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52578.2230	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3437-301-1-0391-0191		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52578.2222	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.181	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20080	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4748	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60581	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.5099	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26729522	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36282126	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237659753910108312		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217503	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047354	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237659753910108160		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964754182		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.969	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.971	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u		deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g		deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r		deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i		deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z		deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	389		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	268566916		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275146473860		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773844358		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342788		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.063	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.059	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.10	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.01	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.00	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.16	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.01	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52522.3360	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52522.3377	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52522.3343	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52522.3352	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52522.3368	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3325-301-1-0156-0152		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52522.3360	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.184	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20203	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4429	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60704	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.4780	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26731031	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36281357	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660222077599890		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217508	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047345	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660222077599744		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623178		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.672	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.831	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.410	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.578	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.581	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.766	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.074	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.033	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.024	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.270	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.693	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.491	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.617	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.692	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	2.162	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.673	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.802	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.639	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.027	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	258.367	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.921	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.243	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.251	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.300	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	1.317	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.558	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	3.041	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.043	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.665	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.584	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.007	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.099	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.251		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.311		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.050		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.150		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.579		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	27.9	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	164.2	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	134.2	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	138.8	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	135.4	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199405769985		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280592896		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275280592896		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146506242		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.057	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.063	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.00	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.03	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.08	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.15	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.03	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.075	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.794	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.386	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.558	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.572	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.509	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.072	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.031	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52577.2263	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52577.2280	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52577.2247	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52577.2255	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52577.2271	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3434-301-1-0401-0146		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52577.2263	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.193	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20121	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4444	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60622	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.4796	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26730263	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36281333	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237656854798532775		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217505	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047346	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237656854798532608		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623106		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.121	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.948	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.496	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.593	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.556	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.120	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.088	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.035	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.020	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.021	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.558	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.812	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.391	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.672	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.615	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.821	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.124	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.052	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.018	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.026	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.971	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.604	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.899	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.208	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.479	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	1.028	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.388	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.028	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.050	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.679	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.388	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.314	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.066	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.101	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.452		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.693		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.472		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.149		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.550		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	34.3	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	98.9	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	73.7	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	44.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	103.3	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146375168		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275146375168		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375170		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.057	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.062	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.07	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.04	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.05	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.01	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.02	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.152	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.912	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.461	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.579	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.537	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.121	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.088	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.035	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.017	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52196.3390	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52196.3406	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52196.3373	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52196.3381	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52196.3398	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2650-301-1-0024-0167		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52196.3390	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.194	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20075	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4525	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60576	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.4877	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26729748	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36281516	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237659904250544283		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217503	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047348	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237659904250544128		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912960		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.185	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.939	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.463	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.603	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.592	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.848	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.073	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.034	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.019	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.022	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.193	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.683	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.286	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.605	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.537	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.209	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.161	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.077	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.023	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.039	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.585	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.598	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.694	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.082	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.144	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.282	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.358	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.025	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.042	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	7.113	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.592	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.157	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.017	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.085	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.314		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.619		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.589		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.794		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	140.8	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	39.8	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	45.4	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	14.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	135.4	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199414166785		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275163152896		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874790522880		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	419463680		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	419430912		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.020	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.020	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.06	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.08	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.05	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.04	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.01	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237659904250544282		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.333	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.838	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.385	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.548	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.517	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.956	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.073	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.032	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.015	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52552.3302	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52552.3319	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52552.3286	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52552.3294	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52552.3311	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3360-301-1-0409-0155		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52552.3302	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.201	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.20105	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4347	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60606	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.4698	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26730235	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36281053	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237657103915352283		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217504	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047343	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237657103915352064		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964623618		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.239	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.096	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.495	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.599	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.495	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.429	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.084	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.035	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.017	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.030	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.239	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.156	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.442	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.630	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.515	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.333	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.160	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.055	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.018	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.024	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.209	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	167.065	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.242	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	147.725	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.132	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	82.870	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.028	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.771	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	4.789	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.225	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.165	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.067	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.094	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.611		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.100		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.554		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	1.000		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.299		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	108.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	106.8	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	47.4	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	74.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	78.2	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154763776		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	275171508736		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	4503874773745666		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275297337858		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.055	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.048	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.00	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.09	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.02	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.06	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.01	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.03	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.01	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.030	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.063	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.460	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.566	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.473	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.378	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.084	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.033	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.011	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.016	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52225.1839	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52225.1856	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52225.1822	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52225.1831	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52225.1847	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.20-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2708-301-1-0157-0219		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52225.1839	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.202	arcsec	Distance from center (007.217547-01.047379)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 28 52.19957	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-01 02 50.4637	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 26 18.60459	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 19 25.4988	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	110.26728542	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-63.36281725	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237656854798532776		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	007.217498	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-01.047351	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237656854798532608		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.911	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	21.917	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	20.500	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	18.590	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	17.554	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.203	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.086	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.035	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.020	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.021	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.031	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	21.730	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	20.422	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	18.639	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	17.578	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.158	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.164	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.074	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.025	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.038	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.971	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.327	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.713	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.217	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.471	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.788	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.187	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.024	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.048	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.685	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.377	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.225	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.066	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.090	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.523		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.424		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.350		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.302		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	14.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	77.5	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	74.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	44.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	103.0	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380353		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146375168		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773745664		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	268468224		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	268468224		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.029	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.025	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.05	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.05	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.05	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237656854798532775		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.189	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	21.841	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	20.400	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	18.516	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	17.483	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.171	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.088	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.035	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.012	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.018	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52196.3390	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52196.3406	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52196.3373	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52196.3381	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52196.3398	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J002852.19-010250.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2650-301-1-0024-0168		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52196.3390	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)