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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=1237655126093725726
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200013 56 11.44992 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+05 01 11.3412 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195013 53 40.56573 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+05 15 49.9349 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon340.70787051 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+63.03977072 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)

SDSS9J135611.45+050111.3  (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-ID2247-301-5-0322-0030   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237655126093725726  (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)
parentID1237655126093725705  Pointer to parent (if object deblended) (meta.id.parent)
flags 6018121A105C  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS209.047708 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.034 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+05.019817 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.033 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2001.2902 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)
umag21.215 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.121 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag20.971 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.060 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag20.684 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.052 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag20.462 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.063 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag20.736 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.264 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 120A801C  Detection flags, u band (flags_u) (Note 3)   (meta.code)
us1   [0,1] 0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
uc6   [0,9] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2001.2902 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag21.215 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.121 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag21.340 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.164 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag21.424 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.318 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 1.55 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 0.22 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA -0.42 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.09 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 0.13 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)
uPA 60.3 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 40001208801D  Detection flags, g band (flags_g) (Note 3)   (meta.code)
gs1   [0,1] 0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
gc6   [0,9] Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2001.2902 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.971 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.060 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag21.066 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.108 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag21.260 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.237 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 1.39 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.13 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA -0.02 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE 0.07 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 0.00 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.785 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA114.9 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 1000401218801C  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)
rDate2001.2902 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.684 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.052 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag20.978 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.106 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag20.789 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.236 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 1.38 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.15 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 0.28 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.961 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA 52.4 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 40401208801D  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)
iDate2001.2902 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag20.462 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.063 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag20.830 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.129 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag20.500 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.259 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 1.39 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.17 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.04 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 0.40 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.984 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA 48.8 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 20A901D  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)
zDate2001.2902 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag20.736 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.264 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag20.921 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.404 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag20.953 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.964 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 1.28 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 1.11 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.21 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.18 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 0.46 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.790 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA 62.6 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA  mas/yr Proper motion along RightAscension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
e_pmRA  mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDE  mas/yr Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
e_pmDE  mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA  arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE  arcsec RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
M0  Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
N0  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)  mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)  mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)  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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