VizieR

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VizieR

  
J/ApJ/831/102
  Swift and NuSTAR obs. of the BL Lac Mrk 421 (Kapanadze+, 2016)
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2016ApJ...831..102K
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1.J/ApJ/831/102/table2Summary of the NuSTAR observations (23 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  Observation identifier (meta.id;obs.param;obs)
  St s (n)Date of the observation start; UTC (year 2013 added by CDS) (time.epoch)
  End s (n)Date of the observation end; UTC (year 2013 added by CDS) (time.epoch)
  Exp s Exposure time (time.duration;obs.exposure)
  CR ct/s NuSTAR count rate (phot.count;em.X-ray)
  e_CR ct/s Uncertainty in CR (stat.error)

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