/*
**
**  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
   56767.181030       0.000391       16.03899        0.51592        1.00000     0
   56767.181829       0.000408       15.50478        0.50115        1.00000     0
   56767.182639       0.000402       15.62688        0.50098        1.00000     0
   56767.183461       0.000420       14.88316        0.48539        1.00000     0
   56767.184294       0.000414       15.30974        0.48693        1.00000     0
   56767.185098       0.000391       15.84039        0.51432        1.00000     0
   56767.185900       0.000411       15.36086        0.48896        1.00000     0
   56767.186713       0.000402       15.48436        0.49729        1.00000     0
   56767.187526       0.000411       15.14136        0.48752        1.00000     0
   56767.188359       0.000422       14.79588        0.47508        1.00000     0
   56767.189195       0.000414       15.06166        0.48966        1.00000     0
   56767.190003       0.000394       15.81900        0.50936        1.00000     0
   56767.191010       0.000613       14.97111        0.39681        1.00000     0