/*
**
**  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
   59703.555782       0.000448       13.83172        0.45209        0.99355     0       12.99566        0.41116       12.69237        0.41488        0.30329        0.05537
   59703.556670       0.000440       13.93111        0.45193        1.00000     0       13.21937        0.41741       12.96331        0.42054        0.25607        0.05121
   59703.557581       0.000472       13.13330        0.42468        0.99387     0       12.37863        0.39125       12.17681        0.39372        0.20182        0.04404
   59703.558473       0.000420       14.67231        0.47289        1.00000     0       13.85755        0.43756       13.65355        0.44005        0.20400        0.04680
   59703.559341       0.000448       13.65183        0.44213        1.00000     0       12.92474        0.40872       12.70377        0.41142        0.22098        0.04711
   59703.560238       0.000448       13.70196        0.44594        0.99355     0       13.02168        0.41158       12.74872        0.41491        0.27296        0.05253
   59703.561091       0.000405       15.32795        0.49130        0.99286     0       14.39807        0.45553       14.26366        0.45718        0.13441        0.03880
   59703.561965       0.000469       13.20085        0.42708        0.99383     0       12.44307        0.39348       12.24000        0.39597        0.20307        0.04431
   59703.562885       0.000451       13.58588        0.43903        1.00000     0       12.84189        0.40610       12.64229        0.40854        0.19960        0.04463
   59703.563774       0.000437       13.90290        0.45520        1.00000     0       13.26712        0.41954       12.93719        0.42358        0.32993        0.05832
   59703.564653       0.000443       13.86722        0.45527        0.98693     0       13.25385        0.41933       12.90330        0.42362        0.35055        0.06012
   59703.565533       0.000437       14.22936        0.46150        1.00000     0       13.61206        0.42496       13.24089        0.42944        0.37118        0.06186