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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=1237663234447311407
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200023 49 22.65360 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+39 54 46.4328 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195023 46 51.76023 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+39 38 05.9324 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon110.19971792 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-21.41955774 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)

SDSS9J234922.65+395446.4  (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-ID4135-301-4-0203-0559   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237663234447311407  (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)
parentID1237663234447311406  Pointer to parent (if object deblended) (meta.id.parent)
flags F01010020010  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS357.344390 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.024 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+39.912898 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.014 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2003.7381 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)
umag19.027 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.054 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag17.899 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.008 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag17.601 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.009 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag17.340 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.010 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag17.292 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.041 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 8404010008011  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)
uDate2003.7381 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag19.027 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.054 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag21.496 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.104 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag19.095 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.120 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 6.33 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 0.49 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.59 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.25 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 11.64 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.408 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA 57.4 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 8004010008010  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)
gDate2003.7381 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag17.899 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.008 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag20.262 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.021 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag17.871 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.021 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 6.50 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.15 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA 0.11 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE -0.02 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 10.55 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.459 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA 55.3 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 18004010008010  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)
rDate2003.7381 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag17.601 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.009 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag19.920 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.019 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag17.591 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.017 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 6.78 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.18 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 9.97 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.419 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA 53.4 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 8904010028010  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)
iDate2003.7381 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag17.340 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.010 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag19.774 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.026 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag17.398 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.029 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 6.17 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.16 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.04 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE -0.05 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 9.97 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.393 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA 54.4 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 8004010008010  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)
zDate2003.7381 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag17.292 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.041 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag19.641 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.066 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag17.742 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.151 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 5.44 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.44 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.32 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.23 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 7.30 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.411 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA 51.4 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA -3 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 0 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 0.68 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.48 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)17.0 mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)16.9 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)16.4 mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)16.7 mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
  
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