/*
**
**  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
   55980.337271       0.000127       10.95982        0.76538        1.00000     0
   55980.337517       0.000119       11.53400        0.81348        1.00000     0
   55980.338217       0.000582       11.58497        0.36966        0.99502     0
   55980.339189       0.000391       11.46848        0.44802        1.00000     0
   55980.340045       0.000466       11.52641        0.41112        1.00000     0
   55980.340630       0.000119       11.44560        0.80926        1.00000     0
   55980.340867       0.000119       11.45607        0.81196        1.00000     0
   55980.341113       0.000127       10.86455        0.76425        1.00000     0
   55980.341784       0.000544       12.30591        0.39284        1.00000     0
   55980.342447       0.000119       11.41165        0.81280        1.00000     0
   55980.342684       0.000119       11.41472        0.80711        1.00000     0
   55980.343263       0.000460       11.51526        0.41464        1.00000     0
   55980.343845       0.000122       11.03480        0.79410        1.00000     0
   55980.344099       0.000133       10.39914        0.73715        1.00000     0
   55980.344365       0.000133       10.05882        0.71836        1.00000     0
   55980.344617       0.000119       11.34439        0.80811        1.00000     0
   55980.345297       0.000561       11.94714        0.38122        1.00000     0
   55980.345980       0.000122       10.93701        0.78705        1.00000     0
   55980.346565       0.000463       11.52285        0.41436        0.99375     0
   55980.347155       0.000127       10.83548        0.76225        1.00000     0
   55980.347939       0.000657       11.73778        0.35031        1.00000     0