/*
**
**  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
   55851.895643       0.000642        5.63102        0.41020        0.83782     0
   55851.896780       0.000495        6.12770        0.44360        0.95906     0
   55851.897851       0.000576        5.43037        0.39418        0.95980     0
   55851.898976       0.000550        5.53829        0.39958        0.95263     0
   55851.899980       0.000454        6.97821        0.50060        0.96178     0
   55851.900926       0.000492        6.00889        0.43517        0.95882     0
   55851.901890       0.000472        6.25643        0.44987        0.95706     0
   55851.902793       0.000431        6.47653        0.47375        0.99329     0
   55851.903623       0.000399        6.92144        0.50067        0.98551     0
   55851.904537       0.000515        5.65874        0.40678        0.94382     0
   55851.905515       0.000463        6.33915        0.45325        0.95625     0
   55851.906792       0.000813        6.35691        0.33983        0.96797     0