/*
**
**  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
   57550.411336       0.000188       34.19387        1.08720        1.00000     0
   57550.411709       0.000185       34.01235        1.08802        1.00000     0
   57550.412080       0.000185       34.26506        1.09685        1.00000     0
   57550.412456       0.000191       33.35296        1.06146        1.00000     0
   57550.412832       0.000185       34.83022        1.11132        1.00000     0
   57550.413205       0.000188       34.04362        1.08229        1.00000     0
   57550.413584       0.000191       33.25584        1.05896        1.00000     0
   57550.413972       0.000197       32.64536        1.03982        1.00000     0
   57550.414365       0.000197       32.17138        1.03481        1.00000     0
   57550.414765       0.000203       31.28091        1.00548        1.00000     0
   57550.415161       0.000194       32.71878        1.05044        1.00000     0
   57550.415543       0.000188       33.49435        1.07091        1.00000     0
   57550.415925       0.000194       33.50407        1.05818        1.00000     0
   57550.416304       0.000185       34.35593        1.09433        1.00000     0
   57550.416683       0.000194       33.62455        1.06376        1.00000     0
   57550.417074       0.000197       32.98178        1.05657        1.00000     0
   57550.417464       0.000194       33.22080        1.05085        1.00000     0
   57550.417852       0.000194       32.99158        1.05685        1.00000     0
   57550.418249       0.000203       31.64876        1.00957        1.00000     0
   57550.418642       0.000191       33.39990        1.06818        1.00000     0
   57550.419015       0.000182       35.37552        1.12789        1.00000     0
   57550.419386       0.000188       34.00612        1.08615        1.00000     0
   57550.419756       0.000182       35.28876        1.12200        1.00000     0
   57550.420138       0.000200       32.12823        1.02485        1.00000     0
   57550.420532       0.000194       32.73100        1.05007        1.00000     0
   57550.420914       0.000188       33.91851        1.08281        1.00000     0
   57550.421310       0.000208       30.36442        0.96806        1.00000     0
   57550.421712       0.000194       33.23905        1.05662        1.00000     0
   57550.422273       0.000367       32.26968        0.75828        1.00000     0