/*
**
**  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
   57513.937125       0.000405       16.43445        0.52375        1.00000     0
   57513.937921       0.000391       17.12035        0.54717        1.00000     0
   57513.938699       0.000388       17.14814        0.54942        1.00000     0
   57513.939483       0.000396       16.56870        0.53135        1.00000     0
   57513.940288       0.000408       16.08347        0.51855        1.00000     0
   57513.941092       0.000396       16.48736        0.53247        1.00000     0
   57513.941865       0.000376       17.51074        0.55972        1.00000     0
   57513.942640       0.000399       16.52316        0.53087        1.00000     0
   57513.943421       0.000382       17.21213        0.55415        1.00000     0
   57513.944185       0.000382       17.32207        0.55272        1.00000     0
   57513.944958       0.000391       17.00186        0.54422        1.00000     0
   57513.945739       0.000391       16.97537        0.54202        1.00000     0
   57513.946656       0.000527       16.92149        0.46597        1.00000     0