/*
**
**  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
   56775.929643       0.000159       39.65649        1.26676        1.00000     0
   56775.929970       0.000168       38.05873        1.21069        1.00000     0
   56775.930288       0.000150       41.19967        1.31683        1.00000     0
   56775.930601       0.000162       38.26743        1.23081        1.00000     0
   56775.930916       0.000153       41.10115        1.32539        1.00000     0
   56775.931229       0.000159       39.55769        1.26057        1.00000     0
   56775.931544       0.000156       40.89191        1.29510        1.00000     0
   56775.931859       0.000159       40.09842        1.27598        1.00000     0
   56775.932169       0.000150       41.68168        1.32090        1.00000     0
   56775.932470       0.000150       41.48562        1.32126        1.00000     0
   56775.932782       0.000162       38.47765        1.22407        1.00000     0
   56775.933095       0.000150       41.10300        1.31618        1.00000     0
   56775.933396       0.000150       41.11959        1.31780        1.00000     0
   56775.933700       0.000153       40.61350        1.29267        1.00000     0
   56775.934015       0.000162       38.88273        1.23859        1.00000     0
   56775.934333       0.000156       40.37175        1.28656        1.00000     0
   56775.934652       0.000162       38.11456        1.22577        1.00000     0
   56775.935042       0.000229       41.12751        1.08119        0.98925     0