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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=1237666493783867715
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200022 43 27.81192 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-00 08 01.8708 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195022 40 53.93005 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-00 23 46.7248 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon068.91096055 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-49.10132277 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)

mode2   [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)

SDSS9J224327.81-000801.8  (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-ID4894-301-3-0100-0323   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237666493783867715  (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)
parentID1237666493783867714  Pointer to parent (if object deblended) (meta.id.parent)
flags 180601090021110  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000401   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS340.865883 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.115 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS-00.133853 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.097 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2004.7918 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)
umag23.851 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 2.166 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag24.975 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 2.001 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag20.147 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.065 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag19.301 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.047 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag19.039 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.152 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 128400018829111  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)
uDate2004.7918 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag23.851 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 2.166 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag23.770 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.652 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag21.315 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.433 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 2.97 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 -0.03 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 29.67 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)
uPA119.4 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 20000008829111  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)
gDate2004.7918 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag24.975 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 2.001 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag24.939 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 1.191 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag25.644 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 4.042 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 0.01 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE 0.30 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 1.38 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.050 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA 20.2 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 18004010008510  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)
rDate2004.7918 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.147 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.065 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag21.242 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.079 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag20.347 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.094 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 7.36 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 2.59 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.569 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA 68.4 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 8004010808010  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)
iDate2004.7918 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag19.301 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.047 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag20.417 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.058 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag19.381 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.099 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 3.71 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.53 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.08 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE -0.08 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 2.38 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.843 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA155.2 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags A8004010028010  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)
zDate2004.7918 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag19.039 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.152 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag20.168 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.185 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag19.800 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.565 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 4.08 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 3.90 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.16 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.33 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 2.65 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.650 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA129.1 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA 28 mas/yr Proper motion along RightAscension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
e_pmRA 8 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDE 24 mas/yr Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
e_pmDE 8 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 0.02 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.02 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)19.4 mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)20.9 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)19.3 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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