/*
**
**  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
   55711.957173       0.000521       12.27493        0.39528        1.00000     0
   55711.957819       0.000124       10.87865        0.75242        1.00000     0
   55711.958062       0.000119       11.02774        0.78884        1.00000     0
   55711.958753       0.000573       10.91300        0.35308        1.00000     0
   55711.959456       0.000130        9.90673        0.70817        1.00000     0
   55711.959705       0.000119       10.63989        0.76501        1.00000     0
   55711.960382       0.000558       11.40370        0.36518        1.00000     0
   55711.961485       0.000544       11.87601        0.37876        1.00000     0
   55711.962191       0.000162       11.02079        0.66931        1.00000     0
   55711.962489       0.000136       10.93440        0.72918        1.00000     0
   55711.962746       0.000122       10.79266        0.75927        1.00000     0
   55711.963012       0.000145       11.09984        0.71672        1.00000     0
   55711.963695       0.000538       11.88623        0.38112        0.99462     0
   55711.964792       0.000558       11.46347        0.36790        1.00000     0
   55711.965677       0.000327       11.05103        0.47445        0.99115     0
   55711.966123       0.000119       11.06825        0.78198        1.00000     0
   55711.966363       0.000122       10.79988        0.77313        1.00000     0
   55711.967052       0.000567       11.20603        0.36127        1.00000     0
   55711.968157       0.000538       11.95881        0.38299        1.00000     0
   55711.969060       0.000365       11.20875        0.45194        1.00000     0