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VizieR

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V/147/sdss12 The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
Data Release 12 (469,053,874 primary sources plus 324,960,094 secondary sources); 3,538,079 spectroscopic targets (original column names in green) (794013968 rows)
  -c=171.599955 +28.450494, eq=ICRS, rs=2
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ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (171.599955+28.450494)[ICRS] (pos.angDistance)
_RAJ200011 26 23.98920 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+28 27 01.7784 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195011 23 44.70439 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+28 43 32.0197 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon203.95553707 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+71.17037253 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)

ra171.599955 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
dec+28.450494 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
mode1   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean    [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class3  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J112623.98+282701.7  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12    [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID5071-301-1-0368-0185  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237667252936900793  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID1237667252936900783  Pointer to parent (if object deblended) (meta.id.parent)
flags 387097114579216  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status 257  Hexadecimal status (Note 4)   (meta.code)
raErr 0.116 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.125 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2004.9568 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q3   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u24.758 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.951 mag Mean error on umag (err_u) (stat.error;phot.mag)
g24.272 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.610 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r24.424 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.554 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i22.469 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.212 mag Mean error on imag (err_i) (stat.error;phot.mag)
z22.879 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.792 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] 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    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 9007199397507345  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u0  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u3   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2004.9568 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag24.758 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.951 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u24.787 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.889 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u24.632 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 1.138 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 2.970 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u  arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u 0.24 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u -0.05 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 0.006 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.445 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u 53.8 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 9077568309330193  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g1  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g6  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2004.9568 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag24.272 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.610 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g24.152 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.902 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g24.637 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 1.488 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 2.970 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g  arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g -0.25 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g -0.12 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.024 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)
deVPhi_g 38.6 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 176161041  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r1  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r6  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2004.9568 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag24.424 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.554 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r24.468 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.566 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r24.511 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 1.345 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 2.970 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r  arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.19 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r -0.04 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.484 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.050 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r127.7 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 4503874807267344  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i0  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i3  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2004.9568 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag22.469 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.212 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i22.674 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.251 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i22.732 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.618 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 1.099 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 0.322 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i 0.00 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i 0.00 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.376 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.050 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i145.4 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 9007199397482769  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z1  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z6  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2004.9568 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag22.879 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.792 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z22.850 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.883 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z22.842 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 1.246 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 2.970 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z  arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z 0.19 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z -0.04 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.066 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.050 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z 34.7 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa  mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr  mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec  mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr  mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA  mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE  mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match    [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit    [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)    Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)    Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)    Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)    Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)    Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph 0.5993  (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr 0.1348   [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ 0.4727   [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph 0.327   Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU -17.969 mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG -19.226 mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR -18.807 mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI -20.289 mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ -19.675 mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
  
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