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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

  Chandra X-ray sources in Orion Nebula Cluster (Flaccomio+, 2003)
Post annotation
1.J/ApJ/582/382/table1X-ray sources detected in the Orion Nebula Cluster (742 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)
  Xseq  X-ray source number ([FDM2003] X NNN in Simbad) (
  RAJ2000 "h:m:s" (i) Source hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) Source degree of Declination (J2000) (pos.eq.dec;meta.main)
  e_Pos arcsec Statistical uncertainty in RA and DE (stat.error)
  S/N  Detection signal-to-noise ratio (stat.snr)
  Cts ct X-ray counts (phot.count;em.X-ray)
  e_Cts ct Uncertainty in Cts (stat.error)
  Exp ks Effective exposure time (Note 1)   (time.duration;obs.exposure)
  Xlist  Close Optical sources in table4 (meta.ref.url)

ALL cols
 (i)indexed column
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usage  Display UCD1+    UCD1  
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Rules of usage of VizieR data

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