/*
**
**  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
   55660.976311       0.000327       19.33686        0.62299        1.00000     0       17.74636        0.56091       17.51205        0.56416        0.23430        0.06050
   55660.976959       0.000321       19.82204        0.63242        1.00000     0       18.13830        0.57215       17.99519        0.57414        0.14311        0.04770
   55660.977621       0.000341       18.43605        0.59136        1.00000     0       17.01137        0.53741       16.83187        0.53990        0.17950        0.05182
   55660.978293       0.000330       19.20275        0.61498        1.00000     0       17.74884        0.55848       17.53208        0.56148        0.21676        0.05793
   55660.978938       0.000315       20.02318        0.64225        1.00000     0       18.50787        0.58323       18.28117        0.58637        0.22671        0.06059
   55660.979566       0.000312       20.16793        0.64756        1.00000     0       18.64215        0.58805       18.41334        0.59122        0.22881        0.06115
   55660.980214       0.000336       18.63708        0.60316        1.00000     0       17.30467        0.54668       17.01556        0.55068        0.28911        0.06633
   55660.980882       0.000333       18.77768        0.60757        1.00000     0       17.42030        0.55088       17.14403        0.55471        0.27627        0.06512
   55660.981557       0.000341       18.33754        0.59271        1.00000     0       17.01137        0.53741       16.74212        0.54114        0.26925        0.06346
   55660.982196       0.000298       21.04068        0.67733        1.00000     0       19.44985        0.61506       19.20994        0.61839        0.23991        0.06412
   55660.982801       0.000307       20.53264        0.65995        1.00000     0       18.95609        0.59855       18.72296        0.60178        0.23312        0.06230
   55660.983420       0.000312       20.07685        0.64920        1.00000     0       18.53085        0.58629       18.25301        0.59015        0.27784        0.06739
   55660.984057       0.000324       19.30980        0.62634        1.00000     0       17.97635        0.56705       17.62964        0.57184        0.34671        0.07392
   55660.984702       0.000321       19.61601        0.62841        1.00000     0       18.08416        0.57130       17.90924        0.57373        0.17492        0.05274
   55660.985330       0.000307       20.63988        0.65852        1.00000     0       18.99388        0.59914       18.84402        0.60122        0.14987        0.04996
   55660.986218       0.000582       20.07870        0.47217        1.00000     0       18.49846        0.42938       18.33161        0.43109        0.16685        0.03828