/*
**
**  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
   56616.786667       0.000379       17.05014        0.55312        1.00000     0
   56616.787422       0.000376       17.16388        0.55737        1.00000     0
   56616.788175       0.000376       17.14304        0.55725        1.00000     0
   56616.788941       0.000391       16.49958        0.53545        1.00000     0
   56616.789717       0.000385       16.91559        0.54382        1.00000     0
   56616.790495       0.000394       16.45905        0.53070        1.00000     0
   56616.791262       0.000373       17.45123        0.56200        1.00000     0
   56616.792029       0.000394       16.49624        0.53156        1.00000     0
   56616.792819       0.000396       16.43947        0.52767        1.00000     0
   56616.793606       0.000391       16.72553        0.53417        1.00000     0
   56616.794393       0.000396       16.47646        0.52724        1.00000     0
   56616.795189       0.000399       16.10567        0.52512        1.00000     0
   56616.795984       0.000396       16.31719        0.53440        1.00000     0
   56616.797090       0.000709       16.83343        0.40142        1.00000     0