/*
**
**  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
   53493.224318       0.000258       23.81882        0.77487        1.00000     0
   53493.224821       0.000246       24.85472        0.80200        1.00000     0
   53493.225316       0.000249       24.84874        0.79585        1.00000     0
   53493.225817       0.000252       24.40688        0.77868        1.00000     0
   53493.226314       0.000246       24.90790        0.79654        1.00000     0
   53493.226806       0.000246       24.93294        0.80522        1.00000     0
   53493.227396       0.000344       25.39392        0.68111        0.99911     0