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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. (324960076 rows)
  objID=1237667324335227072
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200013 06 35.42232 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+27 52 31.9368 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195013 04 11.65443 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+28 08 33.2740 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon046.34105542 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+86.55803412 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)

SDSS9J130635.42+275231.9  (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-ID5087-301-6-0284-0192   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237667324335227072  (i) SDSS unique object identifier (2) (links to SDSS-DR9 details) (Note)   (meta.id;meta.main)
Sp-ID   Spectroscopic Plate-MJD-Fiber identifier (Note 7)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID1237667324335227067  Pointer to parent (if object deblended) (meta.id.parent)
flags 601012021110  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS196.647593 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.135 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+27.875538 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.141 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2004.9733 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)
umag24.225 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.765 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag23.113 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.167 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag23.140 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.286 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag22.981 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.356 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag21.734 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.341 mag Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
zsp    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    [0/255] "zwarning" flag (Note 9)   (meta.code)
Vdisp  km/s Velocity dispersion (velDisp) (phys.veloc.dispersion)
e_Vdisp  km/s Mean error on Vdisp (velDispErr) (stat.error)
spInst    [SDSS BOSS] Spectral instrument (instrument) (meta.id;instr)
spType   Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl   Spectroscopic class (class): GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass   Spectroscopic subclass (subClass) (Note 11)   (src.spType)
spS/N    Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
uFlags 20000000821111  Detection flags, u band (flags_u) (Note 3)   (meta.code)
us1   [0,1] 0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
uc6   [0,9] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2004.9733 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag24.225 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.765 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag24.193 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.520 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag24.683 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 1.289 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 2.97 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad  arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.17 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.21 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 0.00 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)
uPA 86.2 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 400010008011  Detection flags, g band (flags_g) (Note 3)   (meta.code)
gs1   [0,1] 0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
gc6   [0,9] Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2004.9733 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag23.113 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.167 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag23.122 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.266 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag23.265 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.519 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 1.04 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.18 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA 0.15 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE 0.00 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 0.08 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.188 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA 78.5 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 10400012000011  Detection flags, r band (flags_r) (Note 3)   (meta.code)
rs1   [0,1] 0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
rc6   [0,9] Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2004.9733 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag23.140 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.286 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag23.122 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.352 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag23.536 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.696 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 0.84 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.56 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 0.07 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.324 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA 80.2 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 2000011  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)
iDate2004.9733 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag22.981 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.356 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag22.994 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.449 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag23.153 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.794 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 0.90 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.70 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.17 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE 0.21 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 0.36 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.616 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA 46.7 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 4012000010  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)
zDate2004.9733 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag21.734 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.341 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag21.758 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.399 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag21.978 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.788 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 0.83 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.68 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA -0.01 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.10 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 0.40 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.654 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA 83.9 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA  mas/yr Proper motion along RightAscension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
e_pmRA  mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDE  mas/yr Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
e_pmDE  mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA  arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE  arcsec RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
M0  Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
N0  Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)  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)  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)  mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
  
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