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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

  MYStIX: the Chandra X-ray sources (Kuhn+, 2013) (MYStIX catalogs)
Post annotation
1.J/ApJS/209/27/table1Log of Chandra Observations (29 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)
  Reg (char) (i) Name of the MYStIX star-forming region (G1) (list of regions) (Note)   (obs.field)
  ObsID   [977/12142] Chandra observation ID number (;meta.main)
  SeqNum  Chandra sequence number (see Cat. B/chandra) (meta.ref;pos.frame)
  Date s (n)UT start time of the observation (time.start;obs)
  Exp s [9143/126217] Exposure time (Note 1)   (time.duration;obs.exposure)
  RAJ2000 "h:m:s" (i) [5/20] Aimpoint hour of RA (J2000) (Note 2)   (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) [1/47] Aimpoint degree of DEC (J2000) (Note 2)   (pos.eq.dec;meta.main)
  Roll deg [22/351] Roll angle (Note 2)   (instr.offset)
  Mode (char) Observation mode ("Faint" or "Very Faint") (instr.setup)
  PI (char) PI of the observation (
  SimbadName (char) Designation understandable by the Simbad data-base (

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