/*
**
**  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
   56739.050591       0.000188       33.72646        1.07591        1.00000     0
   56739.050988       0.000208       30.00701        0.96990        1.00000     0
   56739.051396       0.000200       31.76794        1.01343        1.00000     0
   56739.051795       0.000200       32.31123        1.02736        1.00000     0
   56739.052186       0.000191       34.14859        1.08793        1.00000     0
   56739.052570       0.000194       33.10340        1.05514        1.00000     0
   56739.052964       0.000200       31.90992        1.02045        1.00000     0
   56739.053363       0.000200       32.10971        1.02442        1.00000     0
   56739.053754       0.000191       33.69617        1.07330        1.00000     0
   56739.054130       0.000185       34.48277        1.09850        1.00000     0
   56739.054506       0.000191       33.07772        1.05237        1.00000     0
   56739.054897       0.000200       31.20269        1.01155        1.00000     0
   56739.055290       0.000194       32.73750        1.04799        1.00000     0
   56739.055684       0.000200       32.26345        1.02081        1.00000     0
   56739.056077       0.000194       33.00132        1.04726        1.00000     0
   56739.056462       0.000191       33.29526        1.06184        1.00000     0
   56739.056853       0.000200       31.77305        1.02203        1.00000     0
   56739.057255       0.000203       31.98286        1.01667        1.00000     0
   56739.057649       0.000191       33.25064        1.06206        1.00000     0
   56739.058033       0.000194       33.13527        1.05891        1.00000     0
   56739.058412       0.000185       33.93637        1.08759        1.00000     0
   56739.058791       0.000194       32.91996        1.05104        1.00000     0
   56739.059182       0.000197       31.89493        1.02610        1.00000     0
   56739.059564       0.000185       34.04367        1.09012        1.00000     0
   56739.059946       0.000197       32.62250        1.03998        1.00000     0
   56739.060342       0.000200       31.67437        1.01798        1.00000     0
   56739.060736       0.000194       33.03321        1.06092        1.00000     0
   56739.061124       0.000194       33.16756        1.06594        1.00000     0
   56739.061558       0.000240       31.68017        0.92585        1.00000     0