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V/139/sdss9 The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)
Data Release 9 (469,053,874 primary sources plus 324,960,076 secondary sources); 2,674,200 spectroscopic targets. Data Release 9 is the first release of the spectra from the SDSS-III's Baryon Oscillation Spectroscopic Survey (BOSS). The photometric part contains the same sources as the Data Release 8, with a corrected astrometry. (794013950 rows)
  objID=1237662301377134706
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200016 48 02.65296 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+26 12 48.7836 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195016 46 00.16082 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+26 18 02.3892 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon046.32217736 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+37.65024045 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)

mode1   [1,2] 1: primary (469,053,874 sources), 2: secondary (324,960,076 sources). (meta.code.class)
q_mode+   [+] '+' indicates clean photometry (105,969,748 sources with mode 1+) (meta.code.qual;instr.setup)
cl3  Type (class) of object (3=galaxy, 6=star) (Note 1)   (src.class)

SDSS9J164802.65+261248.7  (i) SDSS-DR9 name, based on J2000 position (meta.id)
m_SDSS9    [*] The asterisk indicates that 2 different SDSS objects share the same SDSS9 name (meta.code.multip)
ImIm  Image from SDSS-server (meta.ref.url)

SDSS-ID3918-301-2-0378-0114  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237662301377134706  (i) SDSS unique object identifier (2) (links to SDSS-DR9 details) (Note)   (meta.id;meta.main)
Sp-ID4185-55469-0304  (i) Spectroscopic Plate-MJD-Fiber identifier (Note 7)   (meta.id)
SpObjID4711974764775142400  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID1237662301377134704  Pointer to parent (if object deblended) (meta.id.parent)
flags0000000B01010021010  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS252.011054 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.005 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+26.213551 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.005 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2003.3245 yr Mean Observation date (time.epoch;obs;stat.mean)
Q3   [0/5] Quality of the observation (0=unknown): 1=bad 2=acceptable 3=good 4=missing 5=hole (Note 6)   (meta.code.qual;obs.param;obs)
umag17.213 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.025 mag Mean error on umag (err_u) (stat.error;phot.mag)
gmag15.265 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.003 mag Mean error on gmag (err_g) (stat.error;phot.mag)
rmag14.374 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.002 mag Mean error on rmag (err_r) (stat.error;phot.mag)
imag13.890 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.002 mag Mean error on imag (err_i) (stat.error;phot.mag)
zmag13.560 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.004 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp 0.03434   Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp0.00001   Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp 0   [0/255] "zwarning" flag (Note 9)   (meta.code)
Vdisp 107.2 km/s Velocity dispersion (velDisp) (phys.veloc.dispersion)
e_Vdisp 3.50e+00 km/s Mean error on Vdisp (velDispErr) (stat.error)
spInstBOSS   [SDSS BOSS] Spectral instrument (instrument) (meta.id;instr)
spTypeBRIGHTGAL  Source type (sourceType) (10) (list of types) (Note)   (src.class)
spClGALAXY  Spectroscopic class (class): GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClassSTARFORMING  Spectroscopic subclass (subClass) (Note 11)   (src.spType)
spS/N 46.11   Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
uFlags0000008004010829010  Detection flags, u band (flags_u) (Note 3)   (meta.code)
us0   [0,1] 0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
uc3   [0,9] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2003.3245 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag17.213 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.025 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag20.209 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.052 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag17.233 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.080 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 15.19 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 2.20 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA -0.03 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE -0.16 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 18.46 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.642 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA146.2 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags0000008004010029010  Detection flags, g band (flags_g) (Note 3)   (meta.code)
gs0   [0,1] 0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
gc3   [0,9] Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2003.3245 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag15.265 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.003 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
gpmag18.726 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.018 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag15.363 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.016 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 21.89 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 1.64 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA 0.02 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE 0.01 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 20.09 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.552 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA140.6 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags0000018004010029010  Detection flags, r band (flags_r) (Note 3)   (meta.code)
rs0   [0,1] 0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
rc3   [0,9] Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2003.3245 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag14.374 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.002 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
rpmag17.779 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.022 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag14.552 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.011 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 20.76 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 1.19 arcsec Mean error in rPrad (petroMagErr_r) (stat.error)
roRA 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
roDE 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
rdVrad 17.34 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.556 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA140.5 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags0000008004010029010  Detection flags, i band (flags_i) (Note 3)   (meta.code)
is0   [0,1] 0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
ic3   [0,9] Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2003.3245 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag13.890 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.002 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
ipmag17.444 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.014 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag14.091 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.009 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 20.38 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 1.45 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.01 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE -0.04 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 16.64 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.579 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA141.1 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags0000008904010028010  Detection flags, z band (flags_z) (Note 3)   (meta.code)
zs0   [0,1] 0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
zc3   [0,9] Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2003.3245 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag13.560 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.004 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
zpmag16.923 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.018 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag13.923 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.013 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 17.99 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 1.19 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA -0.02 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE -0.06 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 15.63 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.580 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA144.7 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA -20 mas/yr Proper motion along RightAscension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
e_pmRA 5 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDE 60 mas/yr Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
e_pmDE 5 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 1.18 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.47 arcsec RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
M1  Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
N4  Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)17.5 mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)  mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)10.4 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)  mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)10.1 mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
  
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