/*
**
**  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
   57489.881739       0.000347       20.90617        0.67281        1.00000     0
   57489.882425       0.000339       20.59171        0.66567        1.00000     0
   57489.883107       0.000344       19.94437        0.65642        1.00000     0
   57489.883785       0.000333       20.81352        0.66961        1.00000     0
   57489.884436       0.000318       21.94746        0.70283        1.00000     0
   57489.885092       0.000339       20.37568        0.66077        1.00000     0
   57489.885772       0.000341       20.36436        0.66286        0.99153     0
   57489.886455       0.000341       20.36494        0.65521        1.00000     0
   57489.887124       0.000327       21.12489        0.68400        1.00000     0
   57489.887786       0.000336       20.71773        0.66907        1.00000     0
   57489.888515       0.000394       21.29360        0.62775        0.99302     0
   57489.951805       0.000339       20.56502        0.66750        0.99176     0
   57489.952468       0.000324       21.63702        0.69350        1.00000     0
   57489.953102       0.000310       22.81798        0.73441        1.00000     0
   57489.953750       0.000339       20.74964        0.67314        1.00000     0
   57489.954418       0.000330       21.42329        0.68667        1.00000     0
   57489.955130       0.000382       20.70050        0.63709        1.00000     0