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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=1237648722300305501
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200011 22 05.42472 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+00 47 03.4260 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195011 19 31.48297 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+01 03 30.8094 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon260.07392129 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+56.03432573 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)

SDSS9J112205.42+004703.4  (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-ID756-301-5-0365-0093   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237648722300305501  (i) SDSS unique object identifier (2) (links to SDSS-DR9 details) (Note)   (meta.id;meta.main)
Sp-ID280-51612-0480  Spectroscopic Plate-MJD-Fiber identifier (Note 7)   (meta.id)
SpObjID 315383942356166656  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID1237648722300305499  Pointer to parent (if object deblended) (meta.id.parent)
flags 201010021110  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS170.522603 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.004 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+00.784285 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.004 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate1999.2206 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)
umag18.755 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.032 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag16.687 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.004 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag15.668 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.003 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag15.244 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.003 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag14.908 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.006 mag Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
zsp 0.10511   Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp0.00002   Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp 0   [0/255] "zwarning" flag (Note 9)   (meta.code)
Vdisp 261.0 km/s Velocity dispersion (velDisp) (phys.veloc.dispersion)
e_Vdisp 6.60e+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 32.75   Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
uFlags 8004010828110  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)
uDate1999.2206 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag18.755 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.032 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag20.583 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.044 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag18.590 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.066 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 0.07 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.10 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 4.43 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.778 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA 11.9 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 4010029010  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)
gDate1999.2206 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag16.687 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.004 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag18.586 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.023 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag16.754 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.010 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 8.94 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.19 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA -0.02 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 4.23 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.907 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA 41.4 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 10004010029010  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)
rDate1999.2205 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag15.668 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.003 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag17.539 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.023 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag15.776 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.009 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 8.09 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.12 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 3.99 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.920 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA 40.0 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 4010029010  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)
iDate1999.2205 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag15.244 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.003 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag17.136 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.010 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag15.379 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.009 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 7.70 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.12 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.02 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 3.61 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.911 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA 38.7 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 4010028010  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)
zDate1999.2206 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag14.908 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.006 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag16.816 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.020 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag15.150 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.017 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 6.24 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.19 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.01 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.02 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 3.03 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.913 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA 42.5 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA -4 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 3 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 0.18 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.18 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)16.8 mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)14.6 mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)14.1 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)13.6 mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)14.4 mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
  
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