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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=1237680474987167787
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200000 09 32.69184 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+33 18 31.5504 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195000 06 57.34876 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+33 01 50.3239 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon112.95361652 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-28.74998077 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)

mode2   [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)

SDSS9J000932.69+331831.5  (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-ID8149-301-5-0268-0043   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237680474987167787  (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)
parentID1237680474987167780  Pointer to parent (if object deblended) (meta.id.parent)
flags 802000101E1014  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000401   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS002.386216 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.096 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+33.308764 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.101 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2009.8758 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)
umag15.562 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.008 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag13.563 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.002 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag12.765 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.002 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag12.236 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.002 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag11.882 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.002 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 8004010029014  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)
uDate2009.8758 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag15.562 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.008 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag17.952 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.648 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag15.924 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 2.348 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 13.60 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 7.07 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.00 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.00 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 11.63 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.827 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA159.2 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 40181E9014  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)
gDate2009.8758 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag13.563 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.002 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag15.966 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.040 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag13.599 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.100 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 21.94 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.33 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA 0.01 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE -0.28 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 14.70 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.911 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA159.2 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 100040101E9014  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)
rDate2009.8758 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag12.765 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.002 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag15.188 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.040 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag12.826 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.024 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 21.79 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.50 arcsec Mean error in rPrad (petroMagErr_r) (stat.error)
roRA -0.13 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
roDE -0.03 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
rdVrad 10.50 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.935 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA107.9 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 40181E9014  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)
iDate2009.8758 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag12.236 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.002 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag14.726 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.032 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag12.277 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.062 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 23.56 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.13 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.11 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE -0.01 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 13.94 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.864 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA156.2 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 40180E9014  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)
zDate2009.8758 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag11.882 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.002 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag14.278 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.093 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag12.011 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.263 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 19.45 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.36 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA -0.11 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 12.73 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.811 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA154.8 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 2 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDE -5 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 0.62 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.47 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) 9.8 mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E) 9.8 mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)13.7 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F) 8.2 mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N) 7.5 mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
  
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