/*
**
**  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
   55920.511446       0.000460       14.11312        0.46297        1.00000     0
   55920.512343       0.000437       14.83259        0.47886        1.00000     0
   55920.513234       0.000454       14.18847        0.46192        1.00000     0
   55920.514146       0.000457       14.08720        0.45966        1.00000     0
   55920.515037       0.000434       14.84669        0.47876        1.00000     0
   55920.515911       0.000440       14.76532        0.47515        1.00000     0
   55920.516793       0.000443       14.59810        0.47422        0.99346     0
   55920.517667       0.000431       15.10355        0.49194        0.99329     0
   55920.518529       0.000431       14.85414        0.48515        1.00000     0
   55920.519374       0.000414       15.56182        0.50474        1.00000     0
   55920.520222       0.000434       14.69127        0.48054        1.00000     0
   55920.521429       0.000773       14.48701        0.35799        0.99625     0