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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=1237667731810419027
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200008 56 59.63688 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+15 29 38.9292 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195008 54 12.45870 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+15 41 13.6655 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon212.31308467 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+34.64651023 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)

SDSS9J085659.63+152938.9  (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-ID5182-301-5-0134-0339   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237667731810419027  (i) SDSS unique object identifier (2) (links to SDSS-DR9 details) (Note)   (meta.id;meta.main)
Sp-ID2431-53818-0541  Spectroscopic Plate-MJD-Fiber identifier (Note 7)   (meta.id)
SpObjID2737211446537512960  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID1237667731810419026  Pointer to parent (if object deblended) (meta.id.parent)
flags 1010000000  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS134.248487 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.008 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+15.494147 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.006 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2005.1887 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)
umag18.655 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)
gmag17.289 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.006 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag16.572 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.005 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag16.181 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.005 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag15.924 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.010 mag Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
zsp 0.11571   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 113.5 km/s Velocity dispersion (velDisp) (phys.veloc.dispersion)
e_Vdisp 9.40e+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)
subClassSTARFORMING  Spectroscopic subclass (subClass) (Note 11)   (src.spType)
spS/N 18.34   Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
uFlags 4010008000  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)
uDate2005.1887 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag18.655 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)
upmag20.366 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.049 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag18.703 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.056 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 5.86 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 0.31 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA -0.24 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 6.11 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 1.000 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA102.0 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 4010008000  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)
gDate2005.1887 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag17.289 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.006 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag18.956 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)
gPmag17.464 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.009 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 5.67 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.06 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA 0.00 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE 0.07 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 4.89 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.900 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA133.0 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 10004010008000  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)
rDate2005.1887 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag16.572 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.005 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag18.281 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.014 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag16.829 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.008 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 5.44 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.05 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 3.51 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.922 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA122.6 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 4010008000  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)
iDate2005.1887 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag16.181 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.005 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag17.815 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.019 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag16.490 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 5.19 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.06 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.02 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE 0.02 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 3.29 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.917 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA111.8 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 4010008000  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)
zDate2005.1887 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag15.924 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.010 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag17.477 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)
zPmag16.282 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.023 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 5.16 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.13 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.00 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.01 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 2.79 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.928 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA 90.5 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA 3 mas/yr Proper motion along RightAscension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
e_pmRA 2 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDE 1 mas/yr Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
e_pmDE 2 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 0.19 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)15.6 mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)15.1 mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)16.3 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)15.0 mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)15.0 mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
  
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