/*
**
**  Swift/XRT light curve for Mrk 421.
**
**  Data taken from the automatic processing at http://www.swift.psu.edu/monitoring/
**
**  When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949.
**
**  Key:
**
**   BinCenter      - Center of time bin (MJD)
**   BinHW          - One-half of the full time bin size (days)
**   Rate           - The background subtracted, PSF corrected and pile-up corrected source count rate (cts/s).
**   RateError      - 1 sigma error in source count rate (cts/s)
**   FracExp        - Conversion factor between bin size and observing time
**   Mode           - 0 if in Windowed Timing (WT)
**                    1 if in Photon Counting (PC)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode
   55947.132171       0.000463       14.05002        0.44941        1.00000     0
   55947.133080       0.000446       14.57786        0.46779        1.00000     0
   55947.133980       0.000454       14.20186        0.45712        1.00000     0
   55947.134874       0.000440       14.70964        0.47345        1.00000     0
   55947.135748       0.000434       14.90962        0.48169        0.99333     0
   55947.136598       0.000417       15.49761        0.50065        1.00000     0
   55947.137487       0.000472       13.54271        0.44117        1.00000     0
   55947.138415       0.000457       14.16145        0.45724        1.00000     0
   55947.139298       0.000425       15.23440        0.49186        1.00000     0
   55947.140175       0.000451       14.41466        0.46203        1.00000     0
   55947.141066       0.000440       14.84729        0.47793        1.00000     0
   55947.142270       0.000764       15.72862        0.37054        1.00000     0