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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=171.589590 +28.458169, eq=ICRS, rs=2
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ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (171.589590+28.458169)[ICRS] (pos.angDistance)
_RAJ200011 26 21.50160 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+28 27 29.4084 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195011 23 42.20851 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+28 43 59.6221 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon203.93126573 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+71.16139728 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)

ra171.589590 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
dec+28.458169 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)
SDSS12J112621.50+282729.4  (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-ID5071-301-1-0368-0171  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237667252936900779  (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)
parentID1237667252936900776  Pointer to parent (if object deblended) (meta.id.parent)
flags 316728370397456  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status 257  Hexadecimal status (Note 4)   (meta.code)
raErr 0.167 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.133 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)
u21.520 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.221 mag Mean error on umag (err_u) (stat.error;phot.mag)
g26.393 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.873 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r25.424 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 1.212 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i23.518 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 1.121 mag Mean error on imag (err_i) (stat.error;phot.mag)
z23.748 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 1.165 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 15762599140556816  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'mag21.520 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.221 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u22.236 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.166 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u21.663 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.611 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 3.681 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u 2.821 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u 0.04 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u -0.01 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 3.299 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)
deVPhi_u114.6 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 9007199397511441  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'mag26.393 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.873 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g24.888 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.843 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g28.351 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.466 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 -0.20 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.16 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.000 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_g115.3 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 9007199397380369  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r0  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r3  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'mag25.424 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 1.212 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r25.407 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.401 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r26.772 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 1.540 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 -0.20 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.15 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.000 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.725 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r 39.5 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 9007199430934801  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'mag23.518 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 1.121 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i24.283 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.486 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i25.207 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 3.469 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 2.970 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i  arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i -0.20 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i 0.15 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 29.676 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_i112.4 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 9007199422677009  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'mag23.748 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 1.165 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z22.540 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.721 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z25.867 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 0.998 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 0.376 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.283 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z -0.20 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z 0.15 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.000 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.107 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z 71.8 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 0.9675  (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr 0.0871   [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ 0.5859   [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 49.702   Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU -21.177 mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG -18.321 mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR -18.076 mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI -19.217 mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ -20.444 mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
  
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