/*
**
**  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
   54930.991108       0.000310       20.33075        0.65636        1.00000     0
   54930.991730       0.000312       20.20447        0.64659        1.00000     0
   54930.992343       0.000301       21.19373        0.67442        1.00000     0
   54930.992957       0.000312       19.98248        0.63746        1.00000     0
   54930.993570       0.000301       20.75974        0.66321        1.00000     0
   54930.994186       0.000315       20.03075        0.63946        1.00000     0
   54930.994808       0.000307       20.56876        0.65160        1.00000     0
   54930.995430       0.000315       19.90627        0.63775        1.00000     0
   54930.996064       0.000318       19.59858        0.63203        1.00000     0
   54930.996689       0.000307       20.35145        0.65244        1.00000     0
   54930.997317       0.000321       19.48335        0.62564        1.00000     0
   54930.997948       0.000310       20.30948        0.64989        1.00000     0
   54930.998561       0.000304       20.76259        0.66199        1.00000     0
   54930.999426       0.000561       19.99438        0.47921        1.00000     0