VizieR

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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=344.366579 +20.795556, eq=ICRS, rs=2
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ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (344.366579+20.795556)[ICRS] (pos.angDistance)
_RAJ200022 57 27.97896 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+20 47 44.0016 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195022 55 01.11872 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+20 31 40.5718 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon090.07941972 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-34.70437347 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)

ra344.366579 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
dec+20.795556 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)
SDSS12J225727.97+204744.0  (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-ID8108-301-3-0144-0046   [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237680297811640366  (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)
parentID1237680297811640365  Pointer to parent (if object deblended) (meta.id.parent)
flags 202346950693396  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status 257  Hexadecimal status (Note 4)   (meta.code)
raErr 0.069 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.063 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2009.7937 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)
u16.877 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.102 mag Mean error on umag (err_u) (stat.error;phot.mag)
g13.885 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.004 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r14.133 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.012 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i14.588 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.024 mag Mean error on imag (err_i) (stat.error;phot.mag)
z29.148 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.353 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 320454676  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u1  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u6   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2009.7937 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag16.877 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.102 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u15.584 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.018 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u17.511 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u13.161 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 1.583 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u 0.019 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u -0.37 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 0.002 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.205 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u 9.6 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 320406036  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g0  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g3  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2009.7937 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag13.885 mag [5/39] 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)
psfMag_g14.331 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.024 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g12.880 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.644 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g124.585 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 3.409 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g 0.03 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.06 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 29.673 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.864 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g 5.4 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4670725682074132  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)
rDate2009.7937 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag14.133 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.012 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r15.849 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.435 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r13.298 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.921 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r119.458 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 4.061 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r -0.46 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r -0.18 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 26.267 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 1.000 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r 60.3 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 167126188921364  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)
iDate2009.7937 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag14.588 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.024 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i14.562 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.148 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i12.971 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 1.789 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i146.691 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 3.444 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i -0.50 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i -0.02 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 29.660 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.914 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i 22.6 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 320438288  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)
zDate2009.7937 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag29.148 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.353 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z13.682 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.047 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z36.855 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 1.916 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 1.381 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.036 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z -0.38 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z -0.03 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 0.801 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z 52.8 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-9999.0000  (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr-9999.0000   [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ 0.1629   [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 79.123   Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU -23.995 mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG -25.975 mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR -25.035 mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI -24.197 mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ -25.657 mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
  
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