VizieR

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VizieR

  
J/ApJS/253/10
  12yrs of R-band photometry of the quasar 3C 454.3 (Fan+, 2021)
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2021ApJS..253...10F
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1.J/ApJS/253/10/table2The intraday variability (IDV) results of FSRQ 3C454.3 (41 rows)

Simple ConstraintList Of Constraints
 
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ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  JD d [4301.3/7731.3] Observing time; JD-2450000 (time.epoch)
  m1 mag [12.34/16.18] Magnitude at the variability occurring point (phot.mag)
  m2 mag [12.51/16.18] Magnitude at the variability ending point (phot.mag)
  sigma mag [0.0013/0.016] Uncertainty of the corresponding night (stat.stdev;phot.mag)
  N   [2/126] Number of pairs of observations (meta.number)
  C1   [2.8/15.6] Variability index, target-comparison star #1 (Note 1)   (src.var.index)
  C2   [2.6/16] Variability index, target-comparison star #2 (Note 1)   (src.var.index)
  F1   [10.5/242] F-test value, target-comparison star #1 (Note 1)   (stat.fit.param)
  F2   [7.4/245] F-test value, target-comparison star #2 (Note 1)   (stat.fit.param)
  F99   [1.5/4063] Critical F value for the corresponding N at 99% level (stat.fit.param)
  F99.9   [1.7/20000] Critical F value for the corresponding N at 99.9% level (stat.fit.param)
  Amp % [2.9/43.7] Variability amplitude (src.var.amplitude)
  Time min [2/285] Corresponding time scale (time.scale)
  Var (char) Variability type (Note 2)   (meta.note)

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