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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=1237667293730898284
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200009 59 15.93192 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+23 29 10.1616 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195009 56 27.34912 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+23 43 33.1052 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon208.45252356 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+51.10305754 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)

SDSS9J095915.93+232910.1  (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-ID5080-301-5-0243-0364   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237667293730898284  (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)
parentID1237667293730898282  Pointer to parent (if object deblended) (meta.id.parent)
flags 1201090021110  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS149.816383 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.185 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+23.486156 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.211 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2004.9706 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)
umag23.583 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 1.357 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag24.584 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 1.363 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag24.131 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 1.572 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag20.744 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.152 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag21.408 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.806 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 2000000008008011  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)
uDate2004.9706 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag23.583 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 1.357 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag24.153 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.633 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag23.654 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 2.856 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 0.57 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 0.47 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.06 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 29.67 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 96.7 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 2020000008829111  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)
gDate2004.9706 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag24.584 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 1.363 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag24.919 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.257 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag25.264 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 3.113 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 2.97 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad  arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA 0.08 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE 0.11 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 0.12 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.374 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA146.0 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 2000000008808111  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)
rDate2004.9706 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag24.131 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 1.572 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag24.519 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.605 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag23.190 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 1.795 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 0.07 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 23.82 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.050 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA 74.0 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 2010004010008510  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)
iDate2004.9706 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.744 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.152 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag22.202 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.178 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag21.026 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.245 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 7.36 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad  arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.00 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE 0.00 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 3.14 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.500 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA 57.3 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 2020000008008011  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)
zDate2004.9706 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag21.408 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.806 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag22.063 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.407 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag20.614 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.932 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 0.67 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.54 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.07 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 29.67 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.050 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA 71.4 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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