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J/ApJS/268/20
  XRT/UVOT obs. of the TeV-detected blazar Mrk501 (Kapanadze+, 2023)
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2023ApJS..268...20K
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Objects
timeSerie
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1.J/ApJS/268/20/table2XRT observations of Mrk 501 [timeSerie] (Interactive plot)
timeSerie
(190 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  XRT Observation identifier (meta.id;obs.param;obs)
  St s (n)Start Date, YYYY-MM-DD (UTC) (time.start)
  End s (n)Start Date, YYYY-MM-DD (UTC) (time.start)
  ExpTime s [240/1584] Total Exposure time (time.duration;obs.exposure)
  MJD d [59257.5/59945.8] Modified Julian Date, observation start (JD-2400000.5) (time.epoch)
  CR ct/s [2.5/15.6] Mean 0.3-1.0keV count rate (phot.count;em.X-ray)
  e_CR ct/s [0.05/0.3] Error in CR (stat.error)
  chi2r   [0.28/37.2] Reduced χ2 (meta.note)
  dof   [1/19] Degrees of freedom of fit (stat.fit.dof)
  Bin (char) s Time bin ("120", "60" or "Or"=Orbit) (time.interval)
  Var (char) Brightness variability? (Note 1)   (meta.code)

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(n) indicates a possible blank or NULL column(i)indexed column
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