/*
**
**  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
   55959.433113       0.000301       20.67412        0.67220        1.00000     0
   55959.433730       0.000315       20.03883        0.63976        1.00000     0
   55959.434352       0.000307       20.50598        0.65805        1.00000     0
   55959.434960       0.000301       21.04165        0.67254        1.00000     0
   55959.435559       0.000298       21.37256        0.67926        1.00000     0
   55959.436160       0.000304       20.57431        0.66461        1.00000     0
   55959.436762       0.000298       20.96652        0.67819        1.00000     0
   55959.437370       0.000310       20.32288        0.65130        1.00000     0
   55959.437989       0.000310       20.47302        0.65149        1.00000     0
   55959.438600       0.000301       21.02871        0.67275        1.00000     0
   55959.439222       0.000321       19.79573        0.63117        1.00000     0
   55959.439835       0.000292       21.63072        0.68966        1.00000     0
   55959.440550       0.000422       21.28680        0.57406        0.99390     0