VizieR

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VizieR

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V/147/sdss12 The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
Data Release 12 (469,053,874 primary sources plus 324,960,094 secondary sources); 3,538,079 spectroscopic targets (original column names in green) (794013968 rows)
  -c=037.229481 +00.340417, eq=ICRS, rs=2
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Note:

ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (037.229481+00.340417)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200002 28 55.07478 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 20 25.5166 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 26 21.14545 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+00 07 04.5451 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon/0.0167.37119099 deg Galactic longitude at Epoch=J0, proper motions taken into account (pos.galactic.lon)
_Glat/0.0-53.89582423 deg Galactic latitude at Epoch=J0, proper motions taken into account (pos.galactic.lat)

ra037.229481 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+00.340417 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode2   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J022855.07+002025.4  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12*   [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID2570-301-4-0194-0330  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237656512822903114  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 68987912704  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status1025  Hexadecimal status (Note 4)   (meta.code)
raErr 0.016 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.014 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2001.7151 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q3   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u21.986 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.177 mag Mean error on umag (err_u) (stat.error;phot.mag)
g20.808 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.028 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r20.331 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.027 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i20.127 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.032 mag Mean error on imag (err_i) (stat.error;phot.mag)
z20.036 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.116 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 275146342400  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u0  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u3   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2001.7151 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag21.986 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.177 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u21.932 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.159 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u22.211 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.651 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 1.560 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u 0.313 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u 0.16 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u 0.12 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 0.465 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.050 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u138.0 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 275146375680  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g1  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g6  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2001.7151 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.808 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.028 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g20.834 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.030 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g20.668 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.069 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 4.387 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 0.093 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g 0.02 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.06 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.094 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 1.000 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g 72.5 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4503874773713408  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r1  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r6  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2001.7151 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.331 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.027 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r20.360 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.028 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r20.269 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.078 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 4.315 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 0.076 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.094 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.135 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r109.1 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 275146375168  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i1  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i6  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2001.7151 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.127 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.032 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i20.144 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.031 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i20.266 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.121 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 1.253 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 0.096 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i -0.02 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i -0.06 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.009 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.320 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i 70.1 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 275146342400  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z1  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z6  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2001.7151 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag20.036 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.116 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z20.066 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.112 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z21.401 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 1.473 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 1.066 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.282 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z 0.07 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z 0.00 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.198 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.050 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z103.6 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa 5.8 mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr 5.7 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec -9.0 mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr 5.7 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 269.50 mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE139.44 mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match 1   [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit 4   [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)20.6   Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E) 0.0   Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)20.3   Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)20.0   Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 0.0   Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph   (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr    [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ    [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph    Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU  mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG  mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR  mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI  mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ  mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
ColumnValue  Explain   (UCD)
_r0.016 arcsec Distance from center (037.229481+00.340417)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200002 28 55.07307 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 20 25.5333 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 26 21.14841 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+00 07 04.5219 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon/0.0167.37267901 deg Galactic longitude at Epoch=J0, proper motions taken into account (pos.galactic.lon)
_Glat/0.0-53.89568796 deg Galactic latitude at Epoch=J0, proper motions taken into account (pos.galactic.lat)

ra037.229477 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+00.340415 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode2   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J022855.07+002025.4  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12*   [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID4895-301-4-0285-0304  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237666498627830064  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 68987912704  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status1025  Hexadecimal status (Note 4)   (meta.code)
raErr 0.020 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.020 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2004.7924 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q1   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u21.935 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.190 mag Mean error on umag (err_u) (stat.error;phot.mag)
g20.797 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.029 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r20.352 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.030 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i20.234 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.036 mag Mean error on imag (err_i) (stat.error;phot.mag)
z20.039 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.112 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 402653696  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u1  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u6   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2004.7924 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag21.935 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.190 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u21.789 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.160 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u21.918 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.310 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 3.335 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u 2.452 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u -0.04 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u -0.09 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 0.000 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.744 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u 54.8 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 275146375168  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g1  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g6  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2004.7924 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.797 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.029 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g20.791 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.030 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g20.840 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.050 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 1.462 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 0.076 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g 0.02 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.00 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.160 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.094 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g135.7 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4503874773712896  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r1  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r6  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2004.7924 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.352 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.030 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r20.349 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.031 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r20.409 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.056 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 1.345 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 0.096 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.000 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.508 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r110.5 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 275146342400  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i1  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i6  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2004.7924 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.234 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.036 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i20.238 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.037 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i20.394 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.079 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 1.366 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 0.098 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i -0.02 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i 0.00 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.196 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.058 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i 13.7 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 275146342400  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z0  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z3  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2004.7924 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag20.039 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.112 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z20.031 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.106 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z20.375 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 0.329 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 1.380 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.263 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z 0.08 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z 0.04 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.411 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.050 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z 32.4 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa 4.4 mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr 5.3 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec -8.2 mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr 5.3 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 273.71 mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE144.96 mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match 1   [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit 4   [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)20.5   Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E) 0.0   Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)20.3   Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)20.0   Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 0.0   Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph   (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr    [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ    [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph    Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU  mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG  mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR  mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI  mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ  mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
ColumnValue  Explain   (UCD)
_r0.016 arcsec Distance from center (037.229481+00.340417)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200002 28 55.07529 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 20 25.5304 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 26 21.14696 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+00 07 04.5389 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon/0.0167.37164599 deg Galactic longitude at Epoch=J0, proper motions taken into account (pos.galactic.lon)
_Glat/0.0-53.89588985 deg Galactic latitude at Epoch=J0, proper motions taken into account (pos.galactic.lat)

ra037.229483 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+00.340421 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode2   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J022855.07+002025.5  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12*   [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID2589-301-4-0147-0521  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237656594424201737  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 68987912448  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status1025  Hexadecimal status (Note 4)   (meta.code)
raErr 0.020 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.018 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2001.7231 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q3   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u22.166 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.268 mag Mean error on umag (err_u) (stat.error;phot.mag)
g20.782 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.032 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r20.324 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.031 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i20.220 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.040 mag Mean error on imag (err_i) (stat.error;phot.mag)
z19.899 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.145 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 9007199388992769  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u0  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u3   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2001.7231 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag22.166 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.268 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u22.089 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.236 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u22.008 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.448 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 7.359 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u  arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u 0.03 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u -0.03 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 2.127 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.050 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u123.8 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 275154763776  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g1  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g6  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2001.7231 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.782 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.032 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g20.803 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.032 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g20.887 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.066 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 1.401 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 31.814 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g 0.03 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.02 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.074 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.087 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g 47.7 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4503874773712896  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r1  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r6  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2001.7231 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.324 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.031 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r20.399 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.038 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r20.299 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.062 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 1.562 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 0.192 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.177 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.175 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r115.9 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 275146375168  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i1  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i6  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2001.7231 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.220 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.040 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i20.280 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.043 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i20.279 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.105 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 1.085 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 1.149 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i -0.03 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i 0.04 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.063 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.300 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i 56.8 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 402653184  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z1  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z6  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2001.7231 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag19.899 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.145 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z19.902 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.132 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z20.601 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 0.621 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 0.988 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.174 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z 0.02 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z -0.11 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.005 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.050 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z 74.6 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa 5.5 mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr 5.7 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec -8.6 mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr 5.7 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 252.88 mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE147.75 mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match 1   [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit 4   [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)20.7   Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E) 0.0   Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)20.1   Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)20.1   Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 0.0   Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph   (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr    [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ    [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph    Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU  mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG  mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR  mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI  mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ  mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
ColumnValue  Explain   (UCD)
_r0.016 arcsec Distance from center (037.229481+00.340417)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200002 28 55.07469 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 20 25.5216 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 26 21.14704 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+00 07 04.5001 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon/0.0167.37214527 deg Galactic longitude at Epoch=J0, proper motions taken into account (pos.galactic.lon)
_Glat/0.0-53.89608477 deg Galactic latitude at Epoch=J0, proper motions taken into account (pos.galactic.lat)

ra037.229479 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+00.340421 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode2   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J022855.07+002025.5  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12*   [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID1752-301-4-0109-0372  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237652999534084468  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 72057663025840128  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status1025  Hexadecimal status (Note 4)   (meta.code)
raErr 0.015 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.014 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2000.7512 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q3   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u21.691 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.124 mag Mean error on umag (err_u) (stat.error;phot.mag)
g20.798 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.026 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r20.364 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.027 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i20.157 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.031 mag Mean error on imag (err_i) (stat.error;phot.mag)
z20.321 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.145 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 275280592896  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u1  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u6   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2000.7512 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag21.691 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.124 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u21.661 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.114 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u21.547 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.168 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 3.064 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u 1.878 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u 0.02 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u 0.01 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 0.000 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.136 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u 66.4 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 275146375168  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g1  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g6  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2000.7512 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.798 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.026 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g20.797 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.031 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g20.842 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.040 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 1.162 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 0.053 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g -0.01 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.00 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.079 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.504 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g108.4 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4503874773745664  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r1  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r6  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2000.7512 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.364 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.027 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r20.361 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.029 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r20.490 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.045 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 1.035 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 0.045 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.000 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.893 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r120.1 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 275280592896  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i1  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i6  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2000.7512 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.157 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.031 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i20.161 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.036 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i20.248 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.057 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 1.038 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 0.074 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i -0.01 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i 0.00 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.063 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.150 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i 75.9 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 72057869318520832  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z0  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z3  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2000.7512 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag20.321 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.145 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z20.238 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.129 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z20.100 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 0.222 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 1.716 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.491 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z -0.24 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z -0.03 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.683 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.050 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z 94.9 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa 5.3 mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr 5.9 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec -8.0 mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr 5.9 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 255.72 mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE148.68 mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match 1   [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit 4   [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)20.6   Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E) 0.0   Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)20.1   Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)20.0   Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 0.0   Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph   (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr    [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ    [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph    Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU  mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG  mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR  mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI  mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ  mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
ColumnValue  Explain   (UCD)
_r0.019 arcsec Distance from center (037.229481+00.340417)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200002 28 55.07355 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 20 25.5235 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 26 21.14589 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+00 07 04.4870 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon/0.0167.37231462 deg Galactic longitude at Epoch=J0, proper motions taken into account (pos.galactic.lon)
_Glat/0.0-53.89621769 deg Galactic latitude at Epoch=J0, proper motions taken into account (pos.galactic.lat)

ra037.229476 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+00.340419 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode2   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J022855.07+002025.5  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12*   [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID2820-301-4-0115-0327  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237657586559549767  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 68987912192  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status1025  Hexadecimal status (Note 4)   (meta.code)
raErr 0.013 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.012 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2001.9637 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q3   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u21.912 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.164 mag Mean error on umag (err_u) (stat.error;phot.mag)
g20.836 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.028 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r20.345 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.026 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i20.179 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.030 mag Mean error on imag (err_i) (stat.error;phot.mag)
z20.130 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.112 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 275280592896  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u1  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u6   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2001.9637 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag21.912 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.164 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u21.922 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.156 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u22.230 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.345 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 1.319 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u 0.111 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u 0.04 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u -0.15 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 0.212 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.212 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u171.6 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 275146375168  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g1  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g6  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2001.9637 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.836 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.028 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g20.852 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.031 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g20.890 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.578 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 1.275 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 0.056 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g 0.08 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g -0.01 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.088 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.850 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g 74.7 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4503874773745664  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r1  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r6  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2001.9637 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.345 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.026 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r20.350 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.025 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r20.416 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.650 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 1.039 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 1.335 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.065 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.336 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r 73.1 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 275146375168  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i1  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i6  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2001.9637 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.179 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.030 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i20.190 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.032 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i20.231 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.568 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 1.167 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 0.087 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i 0.02 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i -0.01 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.077 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.050 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i103.3 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 275280592896  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z1  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z6  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2001.9637 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag20.130 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.112 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z20.102 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.103 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z20.376 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 0.560 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 0.788 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.162 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z 0.00 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z 0.12 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.001 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.091 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z135.9 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa 5.3 mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr 5.7 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec -7.7 mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr 5.7 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 257.50 mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE137.13 mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match 1   [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit 4   [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)20.7   Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E) 0.0   Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)20.2   Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)20.1   Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 0.0   Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph   (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr    [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ    [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph    Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU  mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG  mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR  mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI  mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ  mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
ColumnValue  Explain   (UCD)
_r0.020 arcsec Distance from center (037.229481+00.340417)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200002 28 55.07494 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 20 25.5060 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 26 21.14429 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+00 07 04.5094 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon/0.0167.37119383 deg Galactic longitude at Epoch=J0, proper motions taken into account (pos.galactic.lon)
_Glat/0.0-53.89618182 deg Galactic latitude at Epoch=J0, proper motions taken into account (pos.galactic.lat)

ra037.229477 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+00.340421 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode2   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J022855.07+002025.5  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12*   [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID250-301-4-0157-0256  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237646548496351488  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 68987912192  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status1025  Hexadecimal status (Note 4)   (meta.code)
raErr 0.027 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.026 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate1998.8755 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q3   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u21.962 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.169 mag Mean error on umag (err_u) (stat.error;phot.mag)
g20.838 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.031 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r20.385 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.036 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i20.116 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.043 mag Mean error on imag (err_i) (stat.error;phot.mag)
z19.964 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.170 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 275280592896  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u1  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u6   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate1998.8755 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag21.962 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.169 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u21.946 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.161 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u21.933 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.274 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 2.296 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u 0.594 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u -0.09 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u 0.19 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 0.366 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.050 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u121.3 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 275146375168  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g1  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g6  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate1998.8755 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.838 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.031 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g20.833 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.031 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g20.886 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.056 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 1.629 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 0.118 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g 0.08 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.03 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.145 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.051 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g104.9 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4503874773745664  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r1  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r6  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate1998.8755 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.385 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.036 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r20.377 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.042 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r20.485 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.073 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 1.455 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 0.104 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.000 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.459 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r 69.7 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 275146375168  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i1  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i6  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate1998.8755 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.116 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.043 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i20.119 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.046 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i20.224 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.095 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 1.441 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 0.142 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i 0.05 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i 0.06 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.124 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.103 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i168.8 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 9007474535333888  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z1  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z6  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate1998.8755 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag19.964 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.170 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z19.945 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.166 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z20.562 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 0.574 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 1.347 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.213 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z 0.04 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z -0.20 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.199 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.326 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z 41.8 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa 6.2 mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr 6.1 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec -8.5 mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr 6.1 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 265.53 mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE127.76 mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match 1   [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit 4   [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)20.6   Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E) 0.0   Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)20.1   Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)20.0   Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 0.0   Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph   (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr    [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ    [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph    Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU  mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG  mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR  mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI  mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ  mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
ColumnValue  Explain   (UCD)
_r0.022 arcsec Distance from center (037.229481+00.340417)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200002 28 55.07626 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 20 25.5129 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 26 21.14059 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+00 07 04.5311 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon/0.0167.36991671 deg Galactic longitude at Epoch=J0, proper motions taken into account (pos.galactic.lon)
_Glat/0.0-53.89656585 deg Galactic latitude at Epoch=J0, proper motions taken into account (pos.galactic.lat)

ra037.229482 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+00.340423 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode2   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J022855.07+002025.5  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12*   [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID259-301-4-0204-0354  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237646587154137442  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 68987912192  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status1025  Hexadecimal status (Note 4)   (meta.code)
raErr 0.013 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.013 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate1998.8782 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q3   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u21.857 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.134 mag Mean error on umag (err_u) (stat.error;phot.mag)
g20.835 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.029 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r20.320 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.026 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i20.115 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.031 mag Mean error on imag (err_i) (stat.error;phot.mag)
z20.000 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.124 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 275280592896  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u1  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u6   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate1998.8782 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag21.857 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.134 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u21.883 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.125 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u21.966 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.224 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 1.626 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u 0.330 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u 0.01 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u -0.02 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 0.255 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.050 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u120.6 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 275146375168  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g1  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g6  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate1998.8782 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.835 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.029 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g20.871 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.030 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g20.958 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.047 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 1.250 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 0.077 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g 0.01 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.03 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.002 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.696 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g 75.1 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4503874773745664  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r1  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r6  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate1998.8782 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.320 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.026 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r20.402 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.029 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r20.355 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.049 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 1.106 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 0.132 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.109 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.818 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r 10.2 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 275146375168  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i1  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i6  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate1998.8782 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.115 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.031 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i20.169 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.032 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i20.254 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.065 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 0.947 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 0.092 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i 0.00 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i 0.02 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.000 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.787 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i 63.3 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 275280592896  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z0  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z3  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate1998.8782 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag20.000 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.124 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z20.026 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.116 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z19.968 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 0.232 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 1.656 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.534 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z 0.00 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z -0.05 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.579 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.050 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z 79.0 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa 7.7 mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr 6.1 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec -8.8 mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr 6.1 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 251.87 mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE136.44 mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match 1   [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit 4   [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)20.7   Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E) 0.0   Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)20.2   Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)20.1   Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 0.0   Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph   (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr    [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ    [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph    Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU  mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG  mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR  mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI  mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ  mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
ColumnValue  Explain   (UCD)
_r0.023 arcsec Distance from center (037.229481+00.340417)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200002 28 55.07619 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 20 25.5233 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 26 21.14720 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+00 07 04.5118 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon/0.0167.37174059 deg Galactic longitude at Epoch=J0, proper motions taken into account (pos.galactic.lon)
_Glat/0.0-53.89613210 deg Galactic latitude at Epoch=J0, proper motions taken into account (pos.galactic.lat)

ra037.229487 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+00.340419 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode2   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J022855.07+002025.5  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12*   [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID2677-301-4-0224-0675  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237656972386370211  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 68987912192  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status1025  Hexadecimal status (Note 4)   (meta.code)
raErr 0.013 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.014 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2001.8163 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q3   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u22.201 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.227 mag Mean error on umag (err_u) (stat.error;phot.mag)
g20.858 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.032 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r20.376 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.029 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i20.113 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.031 mag Mean error on imag (err_i) (stat.error;phot.mag)
z19.946 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.110 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 32769  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u0  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u3   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2001.8163 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag22.201 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.227 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u22.173 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.213 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u21.984 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.303 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 2.589 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u 1.560 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u 0.03 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u -0.01 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 0.830 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.050 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u157.6 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 275146375168  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g1  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g6  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2001.8163 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.858 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.032 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g20.864 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.033 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g20.933 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.046 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 1.405 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 0.161 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g 0.01 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.01 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.164 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.067 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g111.1 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4503874773712896  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r1  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r6  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2001.8163 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.376 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.029 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r20.371 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.028 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r20.505 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.052 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 0.927 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 0.038 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.010 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.348 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r 43.0 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 275146375168  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i1  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i6  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2001.8163 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.113 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.031 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i20.115 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.032 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i20.220 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.059 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 0.866 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 1.062 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i 0.02 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i -0.02 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.057 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.073 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i 43.7 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 275280560128  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z0  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z3  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2001.8163 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag19.946 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.110 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z19.938 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.103 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z19.979 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 0.203 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 1.157 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.204 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z -0.01 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z -0.14 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.366 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.050 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z 23.8 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa 5.7 mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr 5.7 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec -8.2 mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr 5.7 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 264.98 mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE150.75 mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match 1   [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit 4   [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)20.6   Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E) 0.0   Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)20.3   Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)20.0   Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 0.0   Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph   (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr    [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ    [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph    Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU  mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG  mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR  mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI  mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ  mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
ColumnValue  Explain   (UCD)
_r0.024 arcsec Distance from center (037.229481+00.340417)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200002 28 55.07474 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 20 25.5118 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 26 21.14574 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+00 07 04.5203 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon/0.0167.37150092 deg Galactic longitude at Epoch=J0, proper motions taken into account (pos.galactic.lon)
_Glat/0.0-53.89596456 deg Galactic latitude at Epoch=J0, proper motions taken into account (pos.galactic.lat)

ra037.229484 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+00.340411 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode2   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J022855.07+002025.4  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12*   [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID4157-301-4-0124-0408  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237663328931414424  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 68987912704  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status1025  Hexadecimal status (Note 4)   (meta.code)
raErr 0.012 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.012 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2003.7464 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q3   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u22.079 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.211 mag Mean error on umag (err_u) (stat.error;phot.mag)
g20.848 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.028 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r20.389 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.026 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i20.129 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.028 mag Mean error on imag (err_i) (stat.error;phot.mag)
z19.988 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.106 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 275280577024  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u1  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u6   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2003.7464 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag22.079 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.211 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u22.010 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.188 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u22.370 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.394 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 1.426 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u 1.126 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u 0.02 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u 0.04 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 0.387 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.050 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u 66.6 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 275146375168  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g1  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g6  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2003.7464 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.848 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.028 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g20.840 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.033 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g20.908 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.042 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 1.149 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 0.083 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g -0.01 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.01 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.000 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.919 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g 43.0 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4503874773712896  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r1  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r6  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2003.7464 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.389 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.026 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r20.397 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.027 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r20.503 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.044 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 0.952 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 0.042 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.039 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.220 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r135.5 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 275146342400  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i1  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i6  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2003.7464 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.129 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.028 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i20.152 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.030 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i20.107 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.045 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 1.219 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 0.110 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i 0.00 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i 0.00 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.115 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.994 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i 73.3 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 275146342400  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z1  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z6  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2003.7464 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag19.988 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.106 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z19.969 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.100 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z20.099 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 0.191 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 1.065 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.276 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z -0.02 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z -0.06 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.067 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.329 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z143.4 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa 5.7 mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr 5.4 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec -8.6 mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr 5.4 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 277.20 mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE141.92 mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match 1   [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit 4   [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)20.7   Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E) 0.0   Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)20.1   Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)20.0   Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 0.0   Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph   (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr    [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ    [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph    Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU  mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG  mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR  mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI  mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ  mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
ColumnValue  Explain   (UCD)
_r0.025 arcsec Distance from center (037.229481+00.340417)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200002 28 55.07643 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 20 25.5151 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 26 21.14644 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+00 07 04.4986 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon/0.0167.37158188 deg Galactic longitude at Epoch=J0, proper motions taken into account (pos.galactic.lon)
_Glat/0.0-53.89628055 deg Galactic latitude at Epoch=J0, proper motions taken into account (pos.galactic.lat)

ra037.229488 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+00.340417 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode2   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J022855.07+002025.5  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12*   [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID2578-301-4-0059-0307  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237656547173794099  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)