/*
**
**  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
   55960.817650       0.000229       19.94259        1.08622        1.00000     0
   55960.818038       0.000159       20.32241        1.47071        1.00000     0
   55960.818365       0.000168       17.79265        1.28973        0.98276     0
   55960.818683       0.000150       16.53209        1.20754        1.00000     0
   55960.818984       0.000150       15.49018        1.13690        1.00000     0
   55960.819288       0.000153       16.08914        1.17712        0.98113     0
   55960.819597       0.000156       15.53271        1.12857        1.00000     0
   55960.819904       0.000150       16.81514        1.20171        1.00000     0
   55960.820271       0.000217       16.15249        0.99832        0.97991     0