/*
**
**  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
   57747.185029       0.000310       20.63874        0.66642        1.00000     0
   57747.185675       0.000336       19.07205        0.61895        1.00000     0
   57747.186340       0.000330       19.24324        0.62521        1.00000     0
   57747.186991       0.000321       19.89827        0.63873        1.00000     0
   57747.187636       0.000324       19.55492        0.64156        1.00000     0
   57747.188279       0.000318       20.26048        0.64892        1.00000     0
   57747.189100       0.000503       20.63655        0.52260        0.99601     0
   57747.299367       0.000312       20.07930        0.64260        0.99797     0
   57747.299992       0.000312       20.15821        0.64442        1.00000     0
   57747.300611       0.000307       20.49329        0.65242        1.00000     0
   57747.301230       0.000312       19.80926        0.63585        1.00000     0
   57747.302165       0.000622       19.39711        0.45083        0.99987     0
   57747.366670       0.000289       21.96145        0.70606        0.99330     0
   57747.367275       0.000315       20.35799        0.65181        1.00000     0
   57747.367879       0.000289       21.80791        0.70012        1.00000     0
   57747.368473       0.000304       20.83597        0.67245        1.00000     0
   57747.369112       0.000336       20.14898        0.62693        1.00000     0