VizieR

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VizieR

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V/147/sdss12 The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
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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=197.115540 +30.104240, eq=ICRS, rs=2
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ColumnValue  Explain   (UCD)
_r0.001 arcsec Distance from center (197.115540+30.104240)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200013 08 27.72949 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+30 06 15.2642 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195013 06 05.23690 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+30 22 14.4487 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon072.47438428 deg Galactic longitude at Epoch=J0. (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+85.22422213 deg Galactic latitude at Epoch=J0. (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)
ra197.115540 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+30.104240 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (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)
class6  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J130827.72+300615.2  (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-ID4646-301-5-0031-0461  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237665429701198285  (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)
parentID1237665429701198282  Pointer to parent (if object deblended) (meta.id.parent)
flags 387097114575120  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status 257  Hexadecimal status (Note 4)   (meta.code)
raErr 0.166 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.140 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2004.3896 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)
u24.667 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.801 mag Mean error on umag (err_u) (stat.error;phot.mag)
g24.145 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.379 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r23.323 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.299 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i22.544 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.247 mag Mean error on imag (err_i) (stat.error;phot.mag)
z21.954 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.440 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 11260098722799889  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)
uDate2004.3896 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag24.667 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.801 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u24.624 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.789 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u24.593 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 1.271 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 0.02 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u 0.02 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 29.668 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_u 65.8 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 9007199296717073  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)
gDate2004.3896 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag24.145 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.379 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g24.131 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.365 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g24.311 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.674 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 2.969 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g  arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g 0.05 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.02 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.236 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_g135.7 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 33554449  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)
rDate2004.3896 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag23.323 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.299 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r23.314 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.289 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r23.717 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.672 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 0.995 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 0.299 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.04 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.03 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.152 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.069 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r170.1 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_i1  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i6  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2004.3896 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag22.544 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.247 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i22.540 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.246 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i22.820 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.571 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 0.997 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 0.250 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 0.054 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.235 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i108.8 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 9077568435126289  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)
zDate2004.3896 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag21.954 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.440 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z21.805 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.408 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z22.431 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 1.052 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 0.691 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.530 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z 0.09 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z -0.23 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 0.017 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.126 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z 52.1 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   (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr    [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ    [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    Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU  mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG  mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR  mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI  mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ  mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
  
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