/*
**
**  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
   57801.137233       0.000530       19.82029        0.64065        0.98907     0
   57801.137884       0.000122       17.03044        1.26852        0.97619     0
   57801.138535       0.000530       19.56470        0.63207        1.00000     0
   57801.139189       0.000124       16.96577        1.21441        1.00000     0
   57801.139849       0.000535       19.29253        0.62619        1.00000     0
   57801.140908       0.000524       19.69552        0.64321        0.99448     0
   57801.141903       0.000472       19.19844        0.66314        0.99766     0
   57801.184637       0.000312       19.57560        0.63397        0.99718     0
   57801.185274       0.000324       18.75039        0.61224        1.00000     0
   57801.185937       0.000339       18.25619        0.58411        1.00000     0
   57801.186576       0.000301       20.20107        0.65744        1.00000     0
   57801.187198       0.000321       20.64870        0.64733        0.99210     0
   57801.318029       0.000365       17.54880        0.57418        0.98587     0
   57801.318769       0.000376       16.63422        0.54750        1.00000     0
   57801.319504       0.000359       17.75996        0.57151        1.00000     0
   57801.320346       0.000483       17.07692        0.48612        1.00000     0