/*
**
**  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
   55707.205776       0.000362       17.21856        0.54978        1.00000     0
   55707.206500       0.000362       17.34490        0.55330        1.00000     0
   55707.207252       0.000391       16.07136        0.51343        1.00000     0
   55707.208019       0.000376       16.51343        0.52974        1.00000     0
   55707.208771       0.000376       16.48769        0.52736        1.00000     0
   55707.209515       0.000367       16.92026        0.54177        1.00000     0
   55707.210273       0.000391       16.05381        0.51797        0.99259     0
   55707.211045       0.000382       16.14676        0.52058        1.00000     0
   55707.211838       0.000411       15.02582        0.49226        1.00000     0
   55707.212654       0.000405       15.22681        0.49159        1.00000     0
   55707.213447       0.000388       15.87488        0.51276        1.00000     0
   55707.214199       0.000365       17.19555        0.55144        1.00000     0
   55707.214952       0.000388       16.02360        0.51598        1.00000     0
   55707.215730       0.000391       16.02573        0.51534        1.00000     0
   55707.216511       0.000391       16.11356        0.51700        1.00000     0
   55707.217463       0.000561       15.41869        0.42055        1.00000     0