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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=1237661817638617683
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200013 33 21.85536 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+12 18 51.2892 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195013 30 53.85030 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+12 34 13.3438 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon338.53277627 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+72.22294905 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)

SDSS9J133321.85+121851.2  (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-ID3805-301-5-0106-0595   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237661817638617683  (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)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 3290020100  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS203.341064 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.114 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+12.314247 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.136 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2003.2232 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)
umag23.293 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.691 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag21.834 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.118 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag21.249 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.092 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag21.423 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.159 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag21.177 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.406 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 20000008008501  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)
uDate2003.2232 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag23.293 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.691 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag23.724 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.508 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag22.731 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 1.116 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 7.36 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad  arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.15 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.02 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 6.38 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)
uPA106.0 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)
gDate2003.2232 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag21.834 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.118 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag22.571 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.111 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag21.549 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.176 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 3.13 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.68 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA -0.13 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE 0.75 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 2.24 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.275 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA177.3 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 10004010028000  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)
rDate2003.2232 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag21.249 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.092 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag22.111 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.110 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag21.494 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.234 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 2.27 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.48 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 2.60 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)
rPA152.2 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 401800C000  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)
iDate2003.2232 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag21.423 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.159 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag22.243 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.163 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag21.685 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.463 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 1.69 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.31 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.14 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE -0.03 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 1.48 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.150 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA153.2 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 2000000800C001  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)
zDate2003.2232 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag21.177 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.406 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag22.040 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.383 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag21.512 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 1.348 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 0.92 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.86 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.14 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 4.08 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)
zPA100.2 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA -2 mas/yr Proper motion along RightAscension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
e_pmRA 5 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDE 15 mas/yr Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
e_pmDE 5 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 0.26 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.57 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)
N4  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)19.5 mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)21.4 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)18.8 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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