VizieR

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

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/883/90
  Mass segregation effect of X-ray sources in GCs. II. (Cheng+, 2019)
ReadMe+ftp
2019ApJ...883...90C
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/883/90/table1Log of Chandra observations (18 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)
  ObsID   [3798/18881] Chandra observation identifier (meta.id;obs.param;obs)
  Date "Y:M:D" (n)Date of the observation (UT) (time.epoch)
  Arrays (char) Chandra arrays (always ACIS-S) (meta.id;instr)
  Ltime ks [13.8/84.2] Livetime (time.duration;obs.exposure)
  RAJ2000 deg (i) Telescope optical pointing RA (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Telescope optical pointing DEC (J2000) (pos.eq.dec;meta.main)
  Roll deg [86/276] Roll angle (instr.offset)
  Ftime s [0.8/3.1] Frame time (time.epoch)
  delX pix [-0.9/0.7] Right ascension shift δx (pos.eq.ra;arith.diff)
  delY pix [-1.8/0.3] Declination shift δy (pos.eq.dec;arith.diff)
  Rot deg [-0.07/0.2] Rotation angle (instr.param)
  Scale   [0.998/1.002] Scale factor of wcs_match transformation matrix (arith.factor)

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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