/*
**
**  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
   58540.059880       0.000385       19.42887        0.62852        1.00000     0
   58540.060641       0.000376       19.25149        0.62262        1.00000     0
   58540.061362       0.000344       20.68902        0.67947        1.00000     0
   58540.062062       0.000356       20.44949        0.66207        1.00000     0
   58540.062768       0.000350       20.72051        0.66914        1.00000     0
   58540.063474       0.000356       20.38281        0.66116        1.00000     0
   58540.064180       0.000350       20.50478        0.67493        1.00000     0
   58540.064889       0.000359       20.28354        0.65606        1.00000     0
   58540.065613       0.000365       19.77133        0.64732        1.00000     0
   58540.066359       0.000382       18.97321        0.62521        0.99242     0
   58540.067097       0.000356       20.44574        0.65843        1.00000     0
   58540.067800       0.000347       20.72466        0.67463        1.00000     0
   58540.068512       0.000365       20.31707        0.65136        1.00000     0
   58540.069218       0.000341       21.40380        0.68769        1.00000     0
   58540.069915       0.000356       20.28125        0.65701        1.00000     0
   58540.070899       0.000628       19.88791        0.49085        1.00000     0