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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=1237678847716688756
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200021 14 30.74688 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+07 49 40.5012 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195021 12 02.98624 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+07 37 12.1072 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon058.53959360 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-26.95292844 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)

SDSS9J211430.74+074940.5  (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-ID7770-301-6-0043-0884   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237678847716688756  (i) SDSS unique object identifier (2) (links to SDSS-DR9 details) (Note)   (meta.id;meta.main)
Sp-ID4079-55363-0979  Spectroscopic Plate-MJD-Fiber identifier (Note 7)   (meta.id)
SpObjID4592814915458626560  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID1237678847716688752  Pointer to parent (if object deblended) (meta.id.parent)
flags 601010021110  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS318.628112 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.077 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+07.827917 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.078 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2008.8270 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)
umag26.516 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 1.416 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag20.739 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.092 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag19.998 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.080 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag18.976 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.049 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag18.914 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.167 mag Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
zsp-0.00013   Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp0.00009   Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp 0   [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)
spInstBOSS   [SDSS BOSS] Spectral instrument (instrument) (meta.id;instr)
spTypeLRG  Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl STAR  Spectroscopic class (class): GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClassM4.5:III  Spectroscopic subclass (subClass) (Note 11)   (src.spType)
spS/N 6.55   Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
uFlags 20000008008011  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)
uDate2008.8270 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag26.516 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 1.416 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag24.544 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 1.283 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag26.613 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 1.960 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 0.26 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 0.12 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.19 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.11 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 0.04 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.388 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA 93.8 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 404010808111  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)
gDate2008.8270 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.739 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.092 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag22.995 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.341 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag20.941 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.279 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 2.97 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad  arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA 0.12 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE -0.11 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 10.95 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.406 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA142.8 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 10000010829110  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)
rDate2008.8270 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag19.998 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.080 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag22.036 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.349 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag20.193 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.335 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 2.97 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad  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 9.70 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.470 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA137.8 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 10008010  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)
iDate2008.8270 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag18.976 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.049 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag20.817 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.168 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag19.216 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.194 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 8.01 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.60 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.09 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE 0.09 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 6.43 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.570 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA142.5 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 10008010  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)
zDate2008.8270 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag18.914 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.167 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag20.321 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.184 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag19.349 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.375 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 5.55 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 1.98 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA -0.04 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.04 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 0.95 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.595 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA160.4 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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