/*
**
**  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
   56418.626816       0.000304       20.54540        0.65993        1.00000     0       19.13654        0.60424       18.91254        0.60743        0.22400        0.06213
   56418.627424       0.000304       20.54361        0.65953        1.00000     0       19.15562        0.60455       18.93162        0.60773        0.22400        0.06213
   56418.628017       0.000289       21.39603        0.68773        1.00000     0       20.01324        0.63319       19.79613        0.63629        0.21711        0.06267
   56418.628619       0.000312       20.07766        0.64298        1.00000     0       18.56787        0.58687       18.40035        0.58926        0.16752        0.05298
   56418.629397       0.000466       20.98035        0.53618        0.99727     0       19.58909        0.49438       19.42007        0.49631        0.16903        0.04364