/*
**
**  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
   58276.264540       0.000318       21.56560        0.69236        1.00000     0
   58276.265180       0.000321       21.22728        0.68327        1.00000     0
   58276.265843       0.000341       20.21905        0.64841        0.99153     0
   58276.266514       0.000330       21.13006        0.67790        1.00000     0
   58276.267168       0.000324       21.52096        0.68616        1.00000     0
   58276.267796       0.000304       22.93698        0.73451        1.00000     0
   58276.268412       0.000312       22.05708        0.70304        1.00000     0
   58276.269043       0.000318       21.97344        0.70194        1.00000     0
   58276.269757       0.000396       21.47602        0.62295        0.99839     0
   58276.603823       0.000284       22.40846        0.72043        0.99188     0
   58276.604384       0.000278       22.64993        0.72439        1.00000     0
   58276.604937       0.000275       22.57856        0.73295        1.00000     0
   58276.605495       0.000284       22.34901        0.71315        1.00000     0
   58276.606062       0.000284       22.23310        0.70813        1.00000     0
   58276.606624       0.000278       22.65458        0.72869        1.00000     0
   58276.607174       0.000272       23.12498        0.74292        1.00000     0
   58276.607732       0.000286       21.97768        0.70284        1.00000     0
   58276.608522       0.000503       22.50226        0.53851        1.00000     0