/*
**
**  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
   59239.148968       0.000211        7.88612        0.56675        0.98630     0
   59239.149420       0.000240        7.43872        0.53537        1.00000     0
   59239.149894       0.000234        7.42769        0.54412        0.95062     0
   59239.150380       0.000252        6.46081        0.47621        0.97701     0
   59239.151017       0.000385        6.47937        0.38109        0.99909     0
   59239.194437       0.000188        7.31530        0.53486        0.99700     0
   59239.194830       0.000205        7.04478        0.50761        0.98592     0
   59239.195241       0.000205        6.76047        0.48904        1.00000     0
   59239.195652       0.000205        6.50675        0.48221        1.00000     0
   59239.196199       0.000341        6.36768        0.37196        0.97595     0