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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=1237667322723958800
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200012 59 01.82616 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+26 48 56.3616 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195012 56 36.53580 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+27 05 06.4964 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon022.89402093 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+88.27971415 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)

SDSS9J125901.82+264856.3  (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-ID5087-301-3-0274-0016   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237667322723958800  (i) SDSS unique object identifier (2) (links to SDSS-DR9 details) (Note)   (meta.id;meta.main)
Sp-ID2241-54169-0099  Spectroscopic Plate-MJD-Fiber identifier (Note 7)   (meta.id)
SpObjID2523168974091347968  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID1237667322723958799  Pointer to parent (if object deblended) (meta.id.parent)
flags B01090021010  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS194.757609 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.002 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+26.815656 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.002 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)
umag16.079 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.008 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag14.176 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.002 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag13.347 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;em.opt.R)
imag12.917 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;em.opt.I)
zmag12.579 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.002 mag Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
zsp 0.02386   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 214.7 km/s Velocity dispersion (velDisp) (phys.veloc.dispersion)
e_Vdisp 4.10e+00 km/s Mean error on Vdisp (velDispErr) (stat.error)
spInstSDSS   [SDSS BOSS] Spectral instrument (instrument) (meta.id;instr)
spTypeGALAXY  Source type (sourceType) (10) (list of types) (Note)   (src.class)
spClGALAXY  Spectroscopic class (class): GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass   Spectroscopic subclass (subClass) (Note 11)   (src.spType)
spS/N 46.85   Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
uFlags 8904010029010  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)
uDate2004.9733 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag16.079 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.008 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag18.618 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.034 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag16.096 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.033 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 25.38 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 2.32 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA -0.04 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE -0.06 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 13.01 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.677 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA 96.2 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 8004010029010  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)
gDate2004.9733 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag14.176 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.002 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag16.806 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.016 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag14.300 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.028 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 17.72 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 2.19 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA -0.03 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE -0.05 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 11.56 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.664 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA 92.9 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 18004010028010  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)
rDate2004.9733 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag13.347 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;em.opt.R)
rpmag16.066 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.016 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag13.479 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.025 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 15.17 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 1.20 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 10.31 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.654 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA 92.3 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 8004010008010  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'mag12.917 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;em.opt.I)
ipmag15.603 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.017 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag13.059 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.024 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 15.32 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 1.04 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.05 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE 0.02 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 10.10 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.655 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA 92.5 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 8004010029010  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'mag12.579 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.002 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag15.234 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.019 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag12.773 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.022 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 13.65 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.80 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.00 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.00 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 9.01 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.675 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA 93.3 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA -9 mas/yr Proper motion along RightAscension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
e_pmRA 3 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDE -12 mas/yr Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
e_pmDE 3 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 0.50 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.22 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)
N6  Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)11.7 mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)10.1 mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)10.1 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F) 9.6 mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 9.8 mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
  
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