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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. (794013950 rows)
  objID=1237662525766500522
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Note: SDSS is also available from http://www.sdss3.org/dr9/

ColumnValue  Explain   (UCD)
_RAJ200012 25 38.01168 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+15 08 55.1472 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195012 23 06.18443 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+15 25 31.4054 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon275.02593398 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+76.60153406 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)
cl6  Type (class) of object (3=galaxy, 6=star) (Note 1)   (src.class)

SDSS9J122538.01+150855.1  (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-ID3970-301-4-0032-0170  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237662525766500522  (i) SDSS unique object identifier (2) (links to SDSS-DR9 details) (Note)   (meta.id;meta.main)
Sp-ID1767-53436-0560  (i) Spectroscopic Plate-MJD-Fiber identifier (Note 7)   (meta.id)
SpObjID1989619124665346048  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID1237662525766500521  Pointer to parent (if object deblended) (meta.id.parent)
flags0000000001010000300  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00000101   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
RA_ICRS186.408382 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
e_RA_ICRS 0.030 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
DE_ICRS+15.148652 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
e_DE_ICRS 0.026 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2003.4090 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)
umag24.316 mag (i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.981 mag Mean error on umag (err_u) (stat.error;phot.mag)
gmag22.438 mag (i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.112 mag Mean error on gmag (err_g) (stat.error;phot.mag)
rmag20.899 mag (i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.047 mag Mean error on rmag (err_r) (stat.error;phot.mag)
imag18.632 mag (i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.012 mag Mean error on imag (err_i) (stat.error;phot.mag)
zmag17.284 mag (i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.016 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp-0.00008   Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp0.00002   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)
spInstSDSS   [SDSS BOSS] Spectral instrument (instrument) (meta.id;instr)
spTypeSTAR_RED_DWARF  Source type (sourceType) (10) (list of types) (Note)   (src.class)
spClSTAR  Spectroscopic class (class): GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClassM7  Spectroscopic subclass (subClass) (Note 11)   (src.spType)
spS/N 1.68   Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
uFlags0000020000009008501  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)
uDate2003.4090 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag24.316 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.981 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag24.165 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.912 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag22.351 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 1.377 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 7.36 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad  arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.04 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE -0.04 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
udVrad 29.62 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)
uPA 59.7 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
gFlags0000000004011808500  Detection flags, g band (flags_g) (Note 3)   (meta.code)
gs1   [0,1] 0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
gc6   [0,9] Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2003.4090 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag22.438 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.112 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
gpmag22.464 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.108 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag21.984 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.420 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 7.36 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad  arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA 0.22 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE -0.23 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gdVrad 1.03 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.250 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
gPA178.7 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
rFlags0000010004011808000  Detection flags, r band (flags_r) (Note 3)   (meta.code)
rs1   [0,1] 0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
rc6   [0,9] Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2003.4090 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag20.899 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.047 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
rpmag20.935 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.046 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag20.610 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.555 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 3.72 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 2.53 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 0.13 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.108 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
rPA 82.7 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
iFlags0000000000019008200  Detection flags, i band (flags_i) (Note 3)   (meta.code)
is1   [0,1] 0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
ic6   [0,9] Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2003.4090 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag18.632 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.012 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
ipmag18.650 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)
iPmag18.673 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.062 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 1.17 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.02 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.01 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE -0.04 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
idVrad 0.00 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.750 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
iPA106.3 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
zFlags0000000004019808200  Detection flags, z band (flags_z) (Note 3)   (meta.code)
zs1   [0,1] 0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
zc6   [0,9] Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2003.4090 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag17.284 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.016 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
zpmag17.285 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.022 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag17.333 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.079 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 1.13 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.04 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA -0.02 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE -0.03 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zdVrad 0.00 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.449 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
zPA140.3 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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