/*
**
**  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
   56054.934042       0.000275       23.67533        0.76456        1.00000     0
   56054.934603       0.000286       22.77994        0.73784        1.00000     0
   56054.935179       0.000289       22.66667        0.72533        1.00000     0
   56054.935752       0.000284       23.55046        0.75326        1.00000     0
   56054.936327       0.000292       22.43163        0.72602        1.00000     0
   56054.936912       0.000292       22.62996        0.72142        1.00000     0
   56054.937491       0.000286       22.64031        0.72736        1.00000     0
   56054.938061       0.000284       23.33492        0.74208        1.00000     0
   56054.938651       0.000307       21.38895        0.68565        1.00000     0
   56054.939276       0.000318       20.59696        0.65777        1.00000     0
   56054.939881       0.000286       22.98563        0.73812        1.00000     0
   56054.940454       0.000286       23.06577        0.73570        1.00000     0
   56054.941024       0.000284       23.28341        0.74261        1.00000     0
   56054.941599       0.000292       22.70420        0.72371        1.00000     0
   56054.942169       0.000278       23.57154        0.75773        1.00000     0
   56054.942731       0.000284       23.09052        0.73883        1.00000     0
   56054.943292       0.000278       23.85966        0.76293        1.00000     0
   56054.943868       0.000298       21.92506        0.70413        1.00000     0
   56054.944632       0.000466       23.50066        0.58673        1.00000     0