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  Calibrating Broad Band X-ray Telescope (Weaver+ 1995)
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1.J/ApJS/96/303/table1Broad Band X-Ray Telescope (BBXRT) observation Log (155 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)
  Source (char) Source name (;meta.main)
  RA1950 deg (i) Nominal right ascension (1950.0) (pos.eq.ra;meta.main)
  DE1950 deg (i) Nominal declination (1950.0) (pos.eq.dec;meta.main)
  DRA deg (n) Offset in right ascension (Note 1)   (pos.eq.ra;arith.diff)
  DDE deg (n) Offset in declination (Note 1)   (pos.eq.dec;arith.diff)
  Roll deg Roll angle of the A-system telescope (phi) (Note 2)   (instr.param)
  Start d Start time of MET measured from 1990 December 2, 06:49:01 UT (time.epoch)
  ExpTime s Exposure time (time.duration;obs.exposure)
  D/N (char) [MND B] Indicator of shuttle day or night (Note 3)   (instr.setup)
  GR  Mean detector guard rate (Note 4)   (instr.param)
  Angle arcmin Average off-axis angle (Note 5)   (instr.offset;stat.mean)
  Rate ct/s Total count rate in all 10 pixels. (phot.count;em.X-ray)
  Class (char) Type of object. (src.class)
  _RA.icrs deg (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
  _DE.icrs deg (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)

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