/*
**
**  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
   55974.184959       0.000431       14.50185        0.46286        1.00000     0       13.48554        0.42581       13.38716        0.42723        0.09838        0.03478
   55974.185809       0.000420       14.93009        0.48265        1.00000     0       13.94045        0.43887       13.68772        0.44249        0.25273        0.05651
   55974.186654       0.000425       14.51144        0.46895        1.00000     0       13.65539        0.43139       13.44349        0.43444        0.21190        0.05139
   55974.187482       0.000402       15.51193        0.50143        1.00000     0       14.39808        0.45553       14.18716        0.45858        0.21091        0.05273
   55974.188312       0.000428       14.48060        0.46618        1.00000     0       13.52252        0.42783       13.36157        0.43016        0.16095        0.04464
   55974.189151       0.000411       15.16601        0.49013        1.00000     0       14.13621        0.44658       13.91685        0.44974        0.21936        0.05320
   55974.189988       0.000425       14.64057        0.47805        1.00000     0       13.66902        0.43161       13.35740        0.43608        0.31162        0.06232
   55974.190838       0.000425       14.67232        0.47213        1.00000     0       13.73716        0.43268       13.53773        0.43554        0.19943        0.04986
   55974.191706       0.000443       13.96926        0.45096        1.00000     0       13.14607        0.41489       12.94248        0.41781        0.20359        0.04938
   55974.192603       0.000454       13.61486        0.43988        1.00000     0       12.82390        0.40452       12.61383        0.40754        0.21007        0.04951
   55974.193480       0.000422       14.59852        0.47317        1.00000     0       13.77636        0.43478       13.52536        0.43839        0.25100        0.05613
   55974.194345       0.000443       14.10651        0.45120        1.00000     0       13.21154        0.41592       13.06783        0.41798        0.14371        0.04149
   55974.195231       0.000443       13.97084        0.45101        1.00000     0       13.14607        0.41489       12.94248        0.41781        0.20359        0.04938
   55974.196110       0.000437       14.15024        0.45494        1.00000     0       13.25386        0.41933       13.10824        0.42144        0.14561        0.04204
   55974.197216       0.000668       14.67152        0.37576        1.00000     0       13.78919        0.34581       13.59089        0.34808        0.19830        0.03966