/*
**
**  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
   55572.209572       0.000532       11.85355        0.38113        1.00000     0
   55572.210634       0.000530       11.61905        0.37762        1.00000     0
   55572.211684       0.000521       12.08903        0.38520        0.99444     0
   55572.212746       0.000541       11.50542        0.37017        1.00000     0
   55572.213794       0.000506       12.27069        0.39412        1.00000     0
   55572.214800       0.000501       12.40928        0.39834        1.00000     0
   55572.215805       0.000503       12.31229        0.39673        1.00000     0
   55572.216803       0.000495       12.55375        0.40409        1.00000     0
   55572.217827       0.000530       11.70382        0.37691        1.00000     0
   55572.218898       0.000541       11.91239        0.37887        1.00000     0