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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=1237672796107243559
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200000 08 51.43584 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-05 12 32.0832 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195000 06 17.87150 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-05 29 13.6314 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon096.21402852 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-65.84711585 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)

SDSS9J000851.43-051232.0  (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-ID6361-301-6-0035-0039   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237672796107243559  (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)
parentID1237672796107243558  Pointer to parent (if object deblended) (meta.id.parent)
flags 1B81012161010  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS002.214316 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.071 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS-05.208912 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.075 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2006.7112 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)
umag15.140 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.007 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag11.064 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.001 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag 9.640 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.001 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag13.163 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.010 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag 8.676 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.001 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 8004012028010  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)
uDate2006.7112 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag15.140 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.007 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag14.283 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.027 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag13.872 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.002 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 1.96 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 0.04 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA -0.01 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.04 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 0.46 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.559 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA110.1 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags C28980010169010  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)
gDate2006.7112 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag11.064 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.001 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag10.994 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.001 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag10.990 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.001 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 3.90 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.12 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA -0.17 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE 0.36 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 3.28 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.872 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA 36.3 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags C18980010069010  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)
rDate2006.7112 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag 9.640 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.001 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag 9.598 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.001 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag 9.592 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.001 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 4.89 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.17 arcsec Mean error in rPrad (petroMagErr_r) (stat.error)
roRA -0.22 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
roDE 0.38 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
rdVrad 5.02 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.962 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA118.1 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 408980010169010  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)
iDate2006.7112 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag13.163 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.010 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag15.468 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.633 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag11.995 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.010 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 6.13 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.22 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.41 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE 0.78 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 6.28 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.949 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA141.4 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags C28980010069010  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)
zDate2006.7112 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag 8.676 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.001 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag 8.515 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.001 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag 8.505 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.001 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 4.30 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.12 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA -0.21 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.39 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 3.41 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.924 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA 36.0 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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