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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=1237665442597634150
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200014 22 57.89016 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+26 55 16.6476 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195014 20 43.88939 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+27 08 52.6393 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon037.61183624 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+69.64400373 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)

SDSS9J142257.89+265516.6  (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-ID4649-301-5-0207-0102   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237665442597634150  (i) SDSS unique object identifier (2) (links to SDSS-DR9 details) (Note)   (meta.id;meta.main)
Sp-ID2131-53819-0380  Spectroscopic Plate-MJD-Fiber identifier (Note 7)   (meta.id)
SpObjID2399397219158484992  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 4001E94021048  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS215.741209 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.020 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+26.921291 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.016 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2004.3924 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)
umag18.418 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.027 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag17.264 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.005 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag16.913 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)
imag16.635 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.007 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag16.565 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.019 mag Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
zsp 0.06427   Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp0.00001   Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp 0   [0/255] "zwarning" flag (Note 9)   (meta.code)
Vdisp 48.9 km/s Velocity dispersion (velDisp) (phys.veloc.dispersion)
e_Vdisp 1.39e+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)
subClassSTARFORMING  Spectroscopic subclass (subClass) (Note 11)   (src.spType)
spS/N 14.75   Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
uFlags 4014028048  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)
uDate2004.3924 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag18.418 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.027 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag20.345 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.053 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag18.255 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.046 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 6.43 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 0.27 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.67 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE -0.78 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 9.77 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.906 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA 96.6 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 4014029048  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)
gDate2004.3924 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag17.264 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.005 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag19.181 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.020 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag17.254 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.008 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 6.04 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 0.09 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE -0.05 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 6.37 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.892 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA120.8 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 10004014008048  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)
rDate2004.3924 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag16.913 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)
rpmag18.889 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.018 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag16.928 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.009 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 5.87 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.08 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 6.37 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.894 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA146.8 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 4014008048  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)
iDate2004.3924 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag16.635 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.007 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag18.603 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.016 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag16.674 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.012 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 5.80 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.08 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.03 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE 0.05 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 6.38 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.900 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA138.9 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 4014028048  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)
zDate2004.3924 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag16.565 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.019 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag18.495 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.032 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag16.692 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.045 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 5.70 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.21 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.08 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE -0.12 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 6.37 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.823 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA146.7 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 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 0.32 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.10 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)15.1 mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)15.3 mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)14.7 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)15.1 mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)15.1 mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
  
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