VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/ApJ/753/106
  Quasar variability with SDSS and POSS imaging (MacLeod+, 2012)
ReadMe+ftp
2012ApJ...753..106M
Similar Catalogs
timeSerie
Post annotation 		img(gal)
1.J/ApJ/753/106/northcat*Master Norhtern catalog of quasars with at least two photometric observations (master_2obsDR7.dat ) (Note) (33881 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  SDSS (char) DR7 Object Designation (HHMMSS.ss+DDMMSS.s; J2000) (meta.id;meta.main)
  RAJ2000 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
  z   [0.08/5.5] Redshift (src.redshift)
  umag mag (n) [15.5/26.8] BEST SDSS u band PSF AB magnitude (Note G2)   (phot.mag;em.opt.U)
  e_umag mag (n) [0.009/5.5] Error in umag (stat.error;phot.mag)
  gmag mag (n) [15.4/26.5] BEST SDSS g band PSF AB magnitude (Note G2)   (phot.mag;em.opt.B)
  e_gmag mag (n) [0.004/1.5] Error in gmag (stat.error;phot.mag)
  rmag mag (n) [15.2/22.6] BEST SDSS r band PSF AB magnitude (Note G2)   (phot.mag;em.opt.R)
  e_rmag mag (n) [0.004/4.8] Error in rmag (stat.error;phot.mag)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  imag mag (n) [15/22.1] BEST SDSS i band PSF AB magnitude (Note G2)   (phot.mag;em.opt.I)
  e_imag mag (n) [0.005/6] Error in imag (stat.error;phot.mag)
  zmag mag (n) [14.8/22.7] BEST SDSS z band PSF AB magnitude (Note G2)   (phot.mag;em.opt.I)
  e_zmag mag (n) [0.01/2.3] Error in zmag (stat.error;phot.mag)
  Au mag [0.02/3] Galactic extinction in u filter (Note G3)   (phys.absorption.gal;em.opt.U)
  logNH [cm-2] [19.7/21.4] Log of Galactic HI column density (phys.columnDensity;pos.galactic)
  F20 mag [-1/16.4] FIRST Peak 20cm flux density (Note 1)   (phot.flux.density;em.radio.750-1500MHz)
  q_F20   [0/1000] Signal-to-ratio for F20 (meta.code.qual)
  SepSF arcsec [0/2] SDSS/FIRST separation (pos.angDistance)
  logCR [ct/s] [-9/-0.1] RASS BSC/FSC full band count rate (Note 2)   (phot.count;em.X-ray)
  q_logCR   [0/24] Signal-to-ratio for logCR (meta.code.qual)
  SepSR arcsec [0/30] SDSS/RASS separation (pos.angDistance)
  Jmag mag (n) [13/18.7] 2MASS J band magnitude (Note 3)   (phot.mag;em.IR.J)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  e_Jmag mag (n) [0.02/0.5] Error in Jmag (stat.error;phot.mag)
  Hmag mag (n) [12.2/17.7] 2MASS H band magnitude (Note 3)   (phot.mag;em.IR.H)
  e_Hmag mag (n) [0.02/0.6] Error in Hmag (stat.error;phot.mag)
  Ksmag mag (n) [11.3/17.15] 2MASS Ks band magnitude (Note 3)   (phot.mag;em.IR.K)
  e_Ksmag mag (n) [0.02/0.6] Error in Kmag (stat.error;phot.mag)
  SepS2M arcsec [0/2] SDSS/2MASS separation (pos.angDistance)
  2Flg   [0/26] 2MASS Flags (Note 4)   (meta.code)
  iMag mag [-30.3/-22] Absolute SDSS i band magnitude (Note G1)   (phys.magAbs;em.opt.I)
  D(g-i) mag [-1.4/3.7] The (g-i) color offset (Note 5)   (phot.color;em.opt.B;em.opt.I)
  MFlg  Morphology flag (1=extended; 0=point source) (meta.code)
  SciFlg  SCIENCEPRIMARY flag (1=is SCIENCEPRIMARY) (meta.code)
  SMFlg   [0/3] SDSS MODE flag (Note 6)   (meta.code)
  UFlg  Uniform target selection flag (1=selected with final algorithm) (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  BFlg   [0/573571072] Target selection flag; BEST (meta.code)
  BLow-z  Low-z Quasar, color selection only, target flag (1=targeted) (meta.code)
  BHi-z  High-z Quasar, color selection only, target flag (1=targeted) (meta.code)
  BFTFlg  FIRST target flag (1=targeted) (meta.code)
  BRTFlg  ROSAT target flag (1=targeted) (meta.code)
  BSerFlg  Serendipity target flag (1=targeted) (meta.code)
  BStarFlg  Star target flag (1=targeted) (meta.code)
  BGalFlg  Galaxy target flag (1=targeted) (meta.code)
  Run   [94/7264] SDSS Imaging Run Number for photometric measurements (meta.id)
  MJD-I d (i) Modified Julian Date of imaging observation (time.epoch)
  MJD-S d Modified Julian Date of spectroscopic observation (time.epoch)
  Plate  Spectroscopic Plate Number (meta.id;instr.plate)
  Fiber  Spectroscopic Fiber Number (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  ReRun  SDSS Photometric Processing Rerun Number (meta.id;obs)
  Camera  SDSS Camera Column Number (meta.id;instr)
  Frame  SDSS Frame Number (obs.field)
  Object  SDSS Object Number (meta.id)
  TFlg  Target selection flag; TARGET (meta.code)
  TLow-z  Low-z Quasar, color selection only, target flag (1=targeted) (meta.code)
  THi-z  High-z Quasar, color selection only, target flag (1=targeted) (meta.code)
  TFTFlg  FIRST target flag (1=targeted) (meta.code)
  TRTFlg  ROSAT target flag (1=targeted) (meta.code)
  TSerFlg  Serendipity target flag (1=targeted) (meta.code)
  TStarFlg  Star target flag (1=targeted) (meta.code)
  TGalFlg  Galaxy target flag (1=targeted) (meta.code)
  uTmag mag (n) TARGET SDSS u band PSF magnitude (Note G2)   (phot.mag;em.opt.U)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  e_uTmag mag (n) Error in uTmag (stat.error;phot.mag)
  gTmag mag (n) TARGET SDSS g band PSF magnitude (Note G2)   (phot.mag;em.opt.B)
  e_gTmag mag (n) Error in gTmag (stat.error;phot.mag)
  rTmag mag (n) TARGET SDSS r band PSF magnitude (Note G2)   (phot.mag;em.opt.R)
  e_rTmag mag (n) Error in rTmag (stat.error;phot.mag)
  iTmag mag (n) TARGET SDSS i band PSF magnitude (Note G2)   (phot.mag;em.opt.I)
  e_iTmag mag (n) Error in iTmag (stat.error;phot.mag)
  zTmag mag (n) TARGET SDSS z band PSF magnitude (Note G2)   (phot.mag;em.opt.I)
  e_zTmag mag (n) Error in zTmag (stat.error;phot.mag)
  ObjID  BEST object ID; 64-bit integer (meta.id)
  SpecID  Spectroscopic Object ID; 64-bit integer (meta.id)
  Name (char) Previously published name (Note 7)   (meta.id)
  Sloan  Display the online SDSS-DR16 data for the nearest object (meta.ref.url)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)
  NED  ask the NED data-base about this object (meta.ref.url)

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