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II/306
  The SDSS Photometric Catalog, Release 8 (Adelman-McCarthy+, 2011)
2011yCat.2306....0A
This catalogue is obsoleted by VizieR
Post annotation
img(gal)
1.II/306/sdss8Data Release 8 (469,053,874 primary sources, plus 324,960,076 secondary sources). Notice that the new reductions used for the SDSS-DR8 introduced some errors in the astrometry, especially at declinations δ>=41°; when possible, the astrometry of the SDSS-DR7 (Cat. II/294) should be preferred. (Note) (324960076 rows)
SDSS is also available from http://www.sdss.org/

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
Standard Original
ShowSortColumn  Constraint Explain   (UCD)
  mode   [1,2] 1: primary (469,053,874 sources), 2: secondary (324,960,076 sources). (qualified to =1 by default) (meta.code.class)
  q_mode (char) [+] '+' indicates clean photometry (105,969,748 sources with mode 1+) (meta.code.qual;instr.setup)
  cl  Type (class) of object (3=galaxy, 6=star) (Note 1)   (src.class)
  SDSS8 (char) (n)(i) SDSS-DR8 name, based on J2000 position (meta.id)
  m_SDSS8 (char) [*] The asterisk indicates that 2 different SDSS objects share the same SDSS8 name (meta.code.multip)
  Im  Image from SDSS-serveur (meta.ref.url)
  R (char) [8] Release inclusion (all observations were reprocessed, value is always 8) (meta.note)
  SDSS-ID (char) [0-9-] SDSS object identifier (Note 2)   (meta.id)
  objID  (i) SDSS unique object identifier (2) (links to SDSS-DR8 details) (Note)   (meta.id;meta.main)
  SpObjID  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
  parentID  Pointer to parent (if object deblended) (meta.id.parent)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  flags  Photo Object Attribute flags (Note 3)   (meta.code.error)
  Status (char) Hexadecimal status (Note 4)   (meta.code)
  RA_ICRS deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
  e_RA_ICRS arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
  DE_ICRS deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
  e_DE_ICRS arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
  zsp  (n) Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
  e_zsp  (n) Mean error on zsp (Note 7)   (stat.error)
  umag mag (n)(i) Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
  e_umag mag (n) Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
  gmag mag (n)(i) Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
  e_gmag mag (n) Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
  rmag mag (n)(i) Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  e_rmag mag (n) Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
  imag mag (n)(i) Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
  e_imag mag (n) Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
  zmag mag (n)(i) Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
  e_zmag mag (n) Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
  Q  Quality of the observation (0=unknown): 1=bad 2=acceptable 3=good 4=missing 5=hole (Note 6)   (meta.code.qual;obs.param;obs)
  ObsDate yr Mean Observation date (time.epoch;obs;stat.mean)
  uFlags  Detection flags, u band (flags_u) (Note 3)   (meta.code)
  us   [0,1] 0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
  uc   [0,9] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
  uDate yr Date of observation in u band (Note 6)   (time.epoch)
  u'mag mag (n) Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
  e_u'mag mag (n) Mean error on u'mag (= e_umag) (stat.error;phot.mag)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  upmag mag (n) PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
  e_upmag mag (n) Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
  uPmag mag (n) Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
  e_uPmag mag (n) Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
  uPrad arcsec (n) Petrosian radius in u band (petroRad_u) (phys.angSize;src)
  e_uPrad arcsec (n) Mean error in uPrad (petroRadErr_u) (stat.error)
  uoRA arcsec (n) Offset of u position along RA (offsetRa_u) (pos.angDistance)
  uoDE arcsec (n) Offset of u position along Dec (offsetDec_u) (pos.angDistance)
  udVrad arcsec (n) de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
  udVell arcsec (n) de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
  uPA deg (n) Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
  gFlags  Detection flags, g band (flags_g) (Note 3)   (meta.code)
  gs   [0,1] 0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  gc   [0,9] Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
  gDate yr Date of observation in g band (Note 6)   (time.epoch)
  g'mag mag (n) Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
  e_g'mag mag (n) Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
  gpmag mag (n) PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
  e_gpmag mag (n) Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
  gPmag mag (n) Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
  e_gPmag mag (n) Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
  gPrad arcsec (n) Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
  e_gPrad arcsec (n) Mean error in gPrad (petroMagErr_g) (stat.error)
  goRA arcsec (n) Offset of g position along RA (offsetRa_g) (pos.angDistance)
  goDE arcsec (n) Offset of g position along Dec (offsetDec_g) (pos.angDistance)
  gdVrad arcsec (n) de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  gdVell arcsec (n) de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
  gPA deg (n) Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
  rFlags  Detection flags, r band (flags_r) (Note 3)   (meta.code)
  rs   [0,1] 0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
  rc   [0,9] Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
  rDate yr Date of observation in r band (Note 6)   (time.epoch)
  r'mag mag (n) Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
  e_r'mag mag (n) Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
  rpmag mag (n) PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
  e_rpmag mag (n) Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
  rPmag mag (n) Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
  e_rPmag mag (n) Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
  rPrad arcsec (n) Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  e_rPrad arcsec (n) Mean error in rPrad (petroMagErr_r) (stat.error)
  roRA arcsec (n) Offset of r position along RA (offsetRa_r) (pos.angDistance)
  roDE arcsec (n) Offset of r position along Dec (offsetDec_r) (pos.angDistance)
  rdVrad arcsec (n) de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
  rdVell arcsec (n) de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
  rPA deg (n) Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
  iFlags  Detection flags, i band (flags_i) (Note 3)   (meta.code)
  is   [0,1] 0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
  ic   [0,9] Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
  iDate yr Date of observation in i band (Note 6)   (time.epoch)
  i'mag mag (n) Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
  e_i'mag mag (n) Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
  ipmag mag (n) PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  e_ipmag mag (n) Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
  iPmag mag (n) Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
  e_iPmag mag (n) Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
  iPrad arcsec (n) Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
  e_iPrad arcsec (n) Mean error in iPrad (petroMagErr_i) (stat.error)
  ioRA arcsec (n) Offset of i position along RA (offsetRa_i) (pos.angDistance)
  ioDE arcsec (n) Offset of i position along Dec (offsetDec_i) (pos.angDistance)
  idVrad arcsec (n) de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
  idVell arcsec (n) de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
  iPA deg (n) Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
  zFlags  Detection flags, z band (flags_z) (Note 3)   (meta.code)
  zs   [0,1] 0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
  zc   [0,9] Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  zDate yr Date of observation in z band (Note 6)   (time.epoch)
  z'mag mag (n) Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
  e_z'mag mag (n) Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
  zpmag mag (n) PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
  e_zpmag mag (n) Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
  zPmag mag (n) Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
  e_zPmag mag (n) Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
  zPrad arcsec (n) Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
  e_zPrad arcsec (n) Mean error in zPrad (petroMagErr_z) (stat.error)
  zoRA arcsec (n) Offset of z position along RA (offsetRa_z) (pos.angDistance)
  zoDE arcsec (n) Offset of z position along Dec (offsetDec_z) (pos.angDistance)
  zdVrad arcsec (n) de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
  zdVell arcsec (n) de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  zPA deg (n) Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
  pmRA mas/yr (n) Proper motion along RightAscension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
  e_pmRA mas/yr (n) Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
  pmDE mas/yr (n) Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
  e_pmDE mas/yr (n) Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
  sigRA arcsec (n) RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
  sigDE arcsec (n) RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
  M  Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
  N  Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
  g(O) mag (n) Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
  r(E) mag (n) Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
  g(J) mag (n) Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
  r(F) mag (n) Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
  i(N) mag (n) Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
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