/*
**
**  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)
**   RawRate                  - Raw source count rate (cts/s)
**   RawError                 - 1 sigma error in the raw count rate (cts/s)
**   NetRate                  - Background subtracted count rate (cts/s)
**   NetError                 - 1 sigma error in the background subtracted count rate (cts/s)
**   BackRate                 - Background count rate (cts/s)
**   BackError                - 1 sigma error in the background count rate (cts/s)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode        RawRate       RawError        NetRate       NetError       BackRate      BackError
   55918.575661       0.000367       16.85245        0.53997        1.00000     0       15.80584        0.49933       15.64831        0.50139        0.15753        0.04548
   55918.576419       0.000391       15.92631        0.50997        1.00000     0       14.85436        0.46950       14.71851        0.47128        0.13585        0.04096
   55918.577186       0.000376       16.62752        0.53578        1.00000     0       15.51815        0.48902       15.27447        0.49220        0.24367        0.05590
   55918.577924       0.000362       17.20657        0.55488        1.00000     0       16.04271        0.50706       15.81597        0.51004        0.22674        0.05499
   55918.578653       0.000367       17.07162        0.54405        1.00000     0       15.90049        0.50082       15.76921        0.50254        0.13128        0.04151
   55918.579391       0.000370       16.76374        0.53871        1.00000     0       15.66671        0.49518       15.48436        0.49757        0.18235        0.04874
   55918.580138       0.000376       16.53832        0.52883        1.00000     0       15.39486        0.48707       15.27944        0.48859        0.11542        0.03847
   55918.580887       0.000373       16.66179        0.53660        1.00000     0       15.62291        0.49256       15.39027        0.49561        0.23264        0.05483
   55918.581631       0.000370       16.67900        0.53524        1.00000     0       15.63541        0.49468       15.47910        0.49674        0.15630        0.04512
   55918.582389       0.000388       16.09275        0.51926        0.99254     0       15.19824        0.47846       14.93499        0.48190        0.26325        0.05745
   55918.583153       0.000376       16.43631        0.52683        1.00000     0       15.39486        0.48707       15.25379        0.48893        0.14107        0.04254
   55918.583911       0.000382       16.27125        0.52055        1.00000     0       15.25267        0.48113       15.10110        0.48312        0.15157        0.04375
   55918.584666       0.000373       16.62372        0.53344        1.00000     0       15.62291        0.49256       15.42905        0.49510        0.19386        0.05006
   55918.585398       0.000359       17.21786        0.55291        1.00000     0       16.15593        0.51090       15.98114        0.51319        0.17479        0.04848
   55918.586278       0.000521       17.65547        0.46465        1.00000     0       16.56091        0.42932       16.38492        0.43122        0.17599        0.04037