/*
**
**  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
   55951.404583       0.000324        9.65274        0.71188        1.00000     0
   55951.405356       0.000448        8.62057        0.62556        0.95484     0
   55951.406282       0.000477        8.73840        0.63852        0.94545     0
   55951.407153       0.000394       10.18103        0.74274        0.96324     0
   55951.408018       0.000466        8.94511        0.65189        0.93789     0
   55951.408970       0.000486        8.47646        0.62344        0.93452     0
   55951.409948       0.000492        8.20967        0.60079        0.95294     0
   55951.410943       0.000503        7.81166        0.58593        0.96552     0
   55951.411962       0.000515        7.83899        0.57366        0.94944     0
   55951.412948       0.000472        8.34247        0.62270        0.96933     0
   55951.413984       0.000564        7.25287        0.52282        0.97436     0