/*
**
**  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
   54849.015437       0.000220       29.84472        0.96964        1.00000     0
   54849.015868       0.000211       31.47058        1.00927        1.00000     0
   54849.016291       0.000211       31.69783        1.01113        1.00000     0
   54849.016731       0.000229       29.39015        0.94453        1.00000     0
   54849.017182       0.000223       29.68024        0.95181        1.00000     0
   54849.017738       0.000333       29.79773        0.78362        0.99877     0
   54849.082130       0.000246       29.67674        0.94502        0.99031     0
   54849.082616       0.000240       29.37308        0.94446        1.00000     0
   54849.083105       0.000249       29.41804        0.94210        1.00000     0
   54849.083611       0.000258       28.00427        0.90099        1.00000     0
   54849.084103       0.000234       30.28110        0.97266        1.00000     0
   54849.084589       0.000252       28.70535        0.91559        1.00000     0
   54849.085076       0.000234       30.22176        0.98165        1.00000     0
   54849.085556       0.000246       28.92652        0.93866        1.00000     0
   54849.086056       0.000255       28.28852        0.90829        1.00000     0
   54849.086557       0.000246       29.52779        0.94488        1.00000     0
   54849.087052       0.000249       29.06134        0.93558        1.00000     0
   54849.087561       0.000260       27.71600        0.89063        1.00000     0
   54849.088065       0.000243       29.29966        0.93829        1.00000     0
   54849.088559       0.000252       28.25102        0.91541        1.00000     0
   54849.089054       0.000243       29.37076        0.94961        1.00000     0
   54849.089537       0.000240       29.95803        0.96341        1.00000     0
   54849.090026       0.000249       28.60765        0.93138        1.00000     0
   54849.090533       0.000258       28.48135        0.90533        1.00000     0
   54849.091224       0.000434       28.23916        0.69978        1.00000     0