/*
**
**  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
   54892.057282       0.000298       20.81314        0.66696        1.00000     0
   54892.057855       0.000275       22.65935        0.72284        1.00000     0
   54892.058387       0.000258       24.63475        0.79438        1.00000     0
   54892.058905       0.000260       24.52525        0.78542        1.00000     0
   54892.059426       0.000260       24.23900        0.77864        1.00000     0
   54892.059958       0.000272       23.49517        0.74947        1.00000     0
   54892.060491       0.000260       24.31348        0.77891        1.00000     0
   54892.061003       0.000252       24.89088        0.79925        1.00000     0
   54892.061523       0.000269       23.74628        0.75600        1.00000     0
   54892.062050       0.000258       24.42075        0.78487        1.00000     0
   54892.062574       0.000266       23.84928        0.75954        1.00000     0
   54892.063100       0.000260       24.26006        0.77998        1.00000     0
   54892.063636       0.000275       23.09482        0.73825        1.00000     0
   54892.064159       0.000249       26.00133        0.82720        1.00000     0
   54892.064683       0.000275       22.91620        0.73063        1.00000     0
   54892.065233       0.000275       22.93764        0.72705        1.00000     0
   54892.065786       0.000278       22.66291        0.72364        1.00000     0
   54892.066327       0.000263       23.92791        0.76524        1.00000     0
   54892.066862       0.000272       23.00835        0.73576        1.00000     0
   54892.067389       0.000255       24.63847        0.78741        1.00000     0
   54892.067912       0.000269       23.35501        0.74510        1.00000     0
   54892.068448       0.000266       24.29131        0.76676        1.00000     0