/*
**
**  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
   58517.200050       0.000295       26.54758        0.86539        1.00000     0
   58517.200637       0.000292       27.51249        0.88944        1.00000     0
   58517.201225       0.000295       29.11757        0.95428        1.00000     0
   58517.201827       0.000307       27.58794        0.89315        1.00000     0
   58517.202426       0.000292       28.30364        0.91380        1.00000     0
   58517.203030       0.000312       26.15974        0.85241        1.00000     0
   58517.203762       0.000420       27.53696        0.76241        0.99528     0
   58517.265273       0.000252       26.05886        0.83172        0.99107     0
   58517.265776       0.000252       25.54648        0.82927        1.00000     0
   58517.266280       0.000252       25.57045        0.81823        1.00000     0
   58517.266774       0.000243       26.47097        0.84895        1.00000     0
   58517.267266       0.000249       25.76231        0.82824        1.00000     0
   58517.267761       0.000246       25.94836        0.83564        1.00000     0
   58517.268259       0.000252       25.53196        0.81388        1.00000     0
   58517.268748       0.000237       27.23490        0.86772        1.00000     0
   58517.269237       0.000252       25.55512        0.81824        1.00000     0
   58517.269749       0.000260       24.50779        0.78794        1.00000     0
   58517.270276       0.000266       23.92728        0.77389        1.00000     0
   58517.270785       0.000243       26.40954        0.84475        1.00000     0
   58517.271285       0.000258       24.99438        0.79796        1.00000     0
   58517.271789       0.000246       26.28353        0.83910        1.00000     0
   58517.272284       0.000249       25.85383        0.82916        1.00000     0
   58517.272781       0.000249       25.43321        0.82896        1.00000     0
   58517.273308       0.000278       26.19730        0.79280        0.98958     0