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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:

Target dimension:

Radius Box size

 ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)
Post annotation
1.IX/10A/1rxs_cor1RXS Correlation entries (18806 rows)

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)
  1RXS (char) 1RXS name (;meta.main)
  RAJ2000 deg Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg Declination (J2000) (pos.eq.dec;meta.main)
  PosErr arcsec Total positional error (stat.error)
  Nid  Number of correlated sources (meta.number)
  bandPos (char) [x] origin of the source position (always x: X-ray) (instr.bandwidth)
  gal_Nh 10+21cm-2Galactic HI column density (in 1021atoms/cm2) (phys.columnDensity;pos.galactic)
  GLON deg Galactic longitude (pos.galactic.lon)
  GLAT deg Galactic latitude (
  HR1  Hardness ratio 1 (phot.flux;arith.ratio)

ALL cols
  e_HR1  rms uncertainty on HR1 (stat.error)
  HR2  Hardness ratio 2 (phot.flux;arith.ratio)
  e_HR2  rms uncertainty on HR2 (stat.error)
  Extent  Source extent (phys.angSize)
  L_Extent  Likelihood of source extent (stat.likelihood)
  Ldetect  Likelihood of source detection algorithm (stat.likelihood)
  ExpTime s Exposure time (time.duration;obs.exposure)
  Count ct/s Source count rate (phot.count;em.X-ray)
  e_Count ct/s rms uncertainty on Count (stat.error;phot.count)
  Flux1 mW/m2 X-ray flux 1 in 0.1-2.4keV energy range (phot.flux;em.X-ray)
  Flux2 mW/m2 X-ray flux 2 in 0.1-2.4keV energy range (phot.flux;em.X-ray)
  begDate "Y:M:D" First date of observation (time.epoch;obs)
  begDate.f d First date of observation (day fraction) (time.epoch)
  endDate "Y:M:D" Last date of observation (time.epoch;obs)
  endDate.f d Last date of observation (day fraction) (time.epoch)
  IncDate "Y:M:D" Date when source was included (time.epoch)
  UpdDate "Y:M:D" (n) Date when source properties changed (time.epoch)

ALL cols
(n) indicates a possible blank or NULL column  
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usage  Display UCD1+    UCD1  
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