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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=1237654948382834808
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200016 45 10.11672 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+42 43 03.6300 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195016 43 34.76887 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+42 48 28.1787 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon067.31653981 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+40.66528465 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)

SDSS9J164510.11+424303.6  (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-ID2206-301-2-0221-0120   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237654948382834808  (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)
parentID1237654948382834806  Pointer to parent (if object deblended) (meta.id.parent)
flags 80301090061010  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000401   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS251.292153 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.064 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+42.717675 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.064 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2001.2248 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)
umag17.845 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.020 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag16.581 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.004 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag16.021 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.003 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag15.651 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.003 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag15.567 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.008 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 8004010029010  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)
uDate2001.2248 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag17.845 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.020 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag19.065 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.032 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag17.950 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.056 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 5.34 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 0.26 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA -0.04 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE -0.14 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 4.11 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.919 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
uPA 62.0 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags 8104010069010  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)
gDate2001.2248 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag16.581 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.004 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag18.075 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.012 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag16.492 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.006 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 6.71 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.10 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA -0.13 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 5.12 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.978 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA 14.7 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags 10004010068010  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)
rDate2001.2248 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag16.021 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.003 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag17.383 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.016 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag15.968 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.005 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 6.65 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.05 arcsec Mean error in rPrad (petroMagErr_r) (stat.error)
roRA -0.09 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
roDE -0.03 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
rdVrad 4.40 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.963 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA164.5 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags 8004010069010  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)
iDate2001.2248 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag15.651 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.003 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag16.976 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.015 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag15.634 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.005 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 6.49 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.06 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.01 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 4.11 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.972 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA166.4 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags 8004010029010  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)
zDate2001.2248 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag15.567 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.008 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag16.891 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.016 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag15.727 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.024 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 5.03 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.11 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.00 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.00 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 3.30 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.925 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA163.8 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRA 1 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 1 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 0.18 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.08 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)13.7 mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)13.7 mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)13.8 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)13.1 mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)14.1 mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
  
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