/*
**
**  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
   55215.262366       0.000119       53.80900        1.71165        1.00000     0
   55215.262618       0.000133       48.85936        1.55554        1.00000     0
   55215.262873       0.000122       52.54683        1.67261        1.00000     0
   55215.263125       0.000130       48.95150        1.56246        1.00000     0
   55215.263373       0.000119       53.55103        1.70504        1.00000     0
   55215.263605       0.000113       55.94705        1.78572        1.00000     0
   55215.263833       0.000116       55.31758        1.75712        1.00000     0
   55215.264071       0.000122       52.03886        1.66111        1.00000     0
   55215.264317       0.000124       50.90304        1.62498        1.00000     0
   55215.264560       0.000119       53.39914        1.71351        1.00000     0
   55215.264803       0.000124       51.58481        1.64068        1.00000     0
   55215.265046       0.000119       53.97916        1.71560        1.00000     0
   55215.265289       0.000124       51.62751        1.63471        1.00000     0
   55215.265526       0.000113       56.12150        1.78750        1.00000     0
   55215.265755       0.000116       55.49017        1.76095        1.00000     0
   55215.265989       0.000119       53.62001        1.70737        1.00000     0
   55215.266223       0.000116       54.72675        1.74410        1.00000     0
   55215.266461       0.000122       53.17319        1.67861        1.00000     0
   55215.266704       0.000122       52.02212        1.65960        1.00000     0
   55215.266938       0.000113       56.51816        1.79483        1.00000     0
   55215.267170       0.000119       53.35644        1.69742        1.00000     0
   55215.267401       0.000113       56.95576        1.81266        1.00000     0
   55215.267633       0.000119       54.24224        1.72061        1.00000     0
   55215.267879       0.000127       51.45985        1.60792        1.00000     0
   55215.268122       0.000116       54.93266        1.74712        1.00000     0
   55215.268359       0.000122       52.73488        1.67048        1.00000     0
   55215.268599       0.000119       53.66954        1.70808        1.00000     0
   55215.268839       0.000122       53.36805        1.67948        1.00000     0
   55215.269082       0.000122       53.15902        1.67719        1.00000     0
   55215.269322       0.000119       53.52002        1.70692        1.00000     0
   55215.269557       0.000116       54.72446        1.74506        1.00000     0
   55215.269788       0.000116       55.63934        1.76303        1.00000     0
   55215.270020       0.000116       55.25061        1.75090        1.00000     0
   55215.270251       0.000116       55.59177        1.75745        1.00000     0
   55215.270480       0.000113       56.42139        1.79566        1.00000     0
   55215.270717       0.000124       51.35611        1.62926        1.00000     0
   55215.270963       0.000122       52.46306        1.66507        1.00000     0
   55215.271206       0.000122       52.23541        1.66497        1.00000     0
   55215.271440       0.000113       57.09839        1.80627        1.00000     0
   55215.271666       0.000113       56.88025        1.79789        1.00000     0
   55215.271987       0.000208       55.66389        1.31157        1.00000     0