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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=1237664336632741929
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200010 04 04.87200 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+31 11 10.9356 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195010 01 11.21347 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+31 25 44.2639 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon196.32121527 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+53.45195049 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)
cl6  Type (class) of object (3=galaxy, 6=star) (Note 1)   (src.class)

SDSS9J100404.87+311110.9  (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-ID4392-301-1-0042-0041  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237664336632741929  (i) SDSS unique object identifier (2) (links to SDSS-DR9 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (Note 7)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID1237664336632741927  Pointer to parent (if object deblended) (meta.id.parent)
flags0000001201092021110  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS151.020300 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.087 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+31.186371 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.087 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2004.0833 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)
umag24.310 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 1.179 mag Mean error on umag (err_u) (stat.error;phot.mag)
gmag21.768 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.128 mag Mean error on gmag (err_g) (stat.error;phot.mag)
rmag24.802 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 1.737 mag Mean error on rmag (err_r) (stat.error;phot.mag)
imag24.362 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 1.476 mag Mean error on imag (err_i) (stat.error;phot.mag)
zmag22.827 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.988 mag Mean error on zmag (err_z) (stat.error;phot.mag)
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)
uFlags0000000000008829111  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)
uDate2004.0833 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag24.310 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 1.179 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag24.297 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 1.155 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag24.459 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 3.091 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 0.16 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.11 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 0.04 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.053 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA115.1 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags0000010000012008010  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)
gDate2004.0833 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag21.768 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.128 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
gpmag21.752 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.850 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag22.003 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 2.030 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 1.45 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 1.34 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA 0.01 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 0.00 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.542 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA 54.5 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags0000020000008829111  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)
rDate2004.0833 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag24.802 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 1.737 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
rpmag24.801 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag16.264 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag24.802 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag27.469 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 2.97 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad  arcsec Mean error in rPrad (petroMagErr_r) (stat.error)
roRA 0.16 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
roDE 0.11 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
rdVrad 8.68 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.054 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA 42.1 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags0000020000008829111  Detection flags, i band (flags_i) (Note 3)   (meta.code)
is1   [0,1] 0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
ic6   [0,9] Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2004.0833 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag24.362 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 1.476 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
ipmag24.362 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag13.001 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag24.362 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag24.607 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 2.97 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad  arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.16 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE 0.11 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 0.00 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)
iPA 47.7 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags0000020000008829111  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)
zDate2004.0833 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag22.827 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.988 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
zpmag22.827 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 4.159 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag22.827 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 8.966 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 2.97 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad  arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.16 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.11 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 0.00 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.061 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA 48.7 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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