/*
**
**  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
   57473.988869       0.000475       13.27682        0.42779        1.00000     0
   57473.989858       0.000515       12.34116        0.39888        0.99438     0
   57473.990848       0.000475       13.38174        0.42910        1.00000     0
   57473.991829       0.000506       12.62502        0.40346        1.00000     0
   57473.992801       0.000466       13.76088        0.43922        1.00000     0
   57473.993753       0.000486       12.92629        0.41539        1.00000     0
   57473.994439       0.000200       10.92509        0.59109        1.00000     0
   57473.995122       0.000483       13.08024        0.42289        1.00000     0
   57473.996088       0.000483       13.12944        0.42554        1.00000     0
   57473.997037       0.000466       13.62524        0.44131        1.00000     0
   57473.997975       0.000472       13.25457        0.42961        1.00000     0
   57473.999201       0.000755       13.29837        0.33997        1.00000     0