/*
**
**  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
   56768.932918       0.000388       16.05774        0.51700        1.00000     0
   56768.933708       0.000402       15.55969        0.50108        1.00000     0
   56768.934547       0.000437       14.28509        0.45945        1.00000     0
   56768.935375       0.000391       15.85781        0.51252        1.00000     0
   56768.936156       0.000391       15.98451        0.51294        1.00000     0
   56768.936937       0.000391       15.91310        0.51339        1.00000     0
   56768.937745       0.000417       15.01785        0.48084        1.00000     0
   56768.938552       0.000391       15.93964        0.51166        1.00000     0
   56768.939472       0.000524       15.68419        0.44111        0.99721     0