/*
**
**  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
   56683.362290       0.000336       19.28545        0.62196        1.00000     0       17.27013        0.54613       17.03713        0.54943        0.23300        0.06016
   56683.362967       0.000341       19.06770        0.61206        1.00000     0       16.96044        0.53660       16.79247        0.53899        0.16797        0.05064
   56683.363650       0.000341       19.29285        0.61878        1.00000     0       17.19812        0.54035       16.95380        0.54379        0.24432        0.06108
   56683.364313       0.000321       20.57545        0.66281        1.00000     0       18.13831        0.57215       17.87858        0.57583        0.25973        0.06493
   56683.364984       0.000350       18.97598        0.60837        1.00000     0       16.78828        0.52721       16.55002        0.53057        0.23826        0.05957
   56683.365664       0.000330       19.77437        0.63713        1.00000     0       17.60826        0.55627       17.37118        0.55962        0.23709        0.06122
   56683.366321       0.000327       20.22947        0.65188        1.00000     0       17.79955        0.56175       17.54441        0.56536        0.25513        0.06378
   56683.366995       0.000347       19.04653        0.61450        1.00000     0       16.76124        0.52898       16.50598        0.53259        0.25526        0.06191
   56683.367675       0.000333       19.63164        0.63424        1.00000     0       17.45515        0.55143       17.18879        0.55520        0.26636        0.06460
   56683.368335       0.000327       20.16422        0.65150        1.00000     0       17.71090        0.56035       17.45577        0.56397        0.25513        0.06378
   56683.368997       0.000336       19.58145        0.62892        1.00000     0       17.40829        0.54831       17.17529        0.55160        0.23300        0.06016
   56683.369654       0.000321       20.29373        0.65610        1.00000     0       18.13831        0.57215       17.82988        0.57651        0.30843        0.07076
   56683.370331       0.000356       18.58966        0.59767        1.00000     0       16.38500        0.51659       16.16526        0.51970        0.21974        0.05674
   56683.371026       0.000339       19.29615        0.62185        1.00000     0       17.10540        0.54119       16.88979        0.54425        0.21561        0.05762
   56683.371680       0.000315       20.70884        0.67196        1.00000     0       18.39760        0.58149       18.06699        0.58617        0.33062        0.07393
   56683.372441       0.000446       20.02322        0.55248        1.00000     0       17.88692        0.48237       17.60611        0.48577        0.28081        0.05732