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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=1237662236941156550
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200014 07 16.82208 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+08 23 34.1232 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195014 04 48.27219 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+08 37 48.3266 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon350.22149826 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+64.05836176 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)

SDSS9J140716.82+082334.1  (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-ID3903-301-2-0203-0198   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237662236941156550  (i) SDSS unique object identifier (2) (links to SDSS-DR9 details) (Note)   (meta.id;meta.main)
Sp-ID1809-53792-0192  Spectroscopic Plate-MJD-Fiber identifier (Note 7)   (meta.id)
SpObjID2036805771655669760  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID1237662236941156549  Pointer to parent (if object deblended) (meta.id.parent)
flags 201890000158  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS211.820092 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.014 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+08.392812 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.011 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2003.3188 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)
umag20.209 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.162 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag18.260 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.013 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag17.069 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.007 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag16.508 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.006 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag15.988 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.012 mag Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
zsp 0.11454   Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp0.00004   Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp 0   [0/255] "zwarning" flag (Note 9)   (meta.code)
Vdisp 252.4 km/s Velocity dispersion (velDisp) (phys.veloc.dispersion)
e_Vdisp 1.58e+01 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 13.15   Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
uFlags 8004018008518  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)
uDate2003.3188 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag20.209 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.162 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag21.808 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.179 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag20.463 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.414 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 27.92 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad  arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.70 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.61 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 7.07 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.450 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA 36.6 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 8004010008018  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)
gDate2003.3188 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag18.260 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.013 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag20.381 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.026 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag18.374 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.031 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 6.84 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.76 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA -0.01 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE -0.03 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 7.41 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.471 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA 87.7 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 18004010008018  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)
rDate2003.3188 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag17.069 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.007 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag19.075 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.020 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag17.340 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.020 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 5.66 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.42 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 5.12 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.500 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA 88.9 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 8004010008018  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)
iDate2003.3188 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag16.508 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.006 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag18.411 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.017 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag16.835 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.018 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 5.46 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.46 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.03 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE 0.07 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 4.11 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.507 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA 87.4 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 8004010008018  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)
zDate2003.3188 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag15.988 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.012 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag17.962 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.021 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag16.442 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.035 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 4.21 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.25 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA -0.01 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.03 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 3.12 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.475 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA 92.1 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA -6 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 -9 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 0.23 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.13 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)19.2 mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)17.3 mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)16.5 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)16.2 mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)16.9 mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
  
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