/*
**
**  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
   58927.955600       0.000153       43.71432        1.38902        1.00000     0       38.32782        1.20364       38.02135        1.20796        0.30646        0.10216
   58927.955913       0.000159       40.99679        1.31260        1.00000     0       36.75196        1.15700       36.32538        1.16304        0.42657        0.11831
   58927.956231       0.000159       41.02578        1.31286        1.00000     0       36.78838        1.15758       36.36180        1.16361        0.42657        0.11831
   58927.956552       0.000162       40.32479        1.29042        1.00000     0       36.13145        1.13691       35.71249        1.14283        0.41896        0.11620
   58927.956879       0.000165       39.94829        1.27442        1.00000     0       35.53271        1.11751       35.18442        1.12244        0.34828        0.10501
   58927.957194       0.000150       43.58880        1.39363        1.00000     0       38.67963        1.22072       38.33257        1.22564        0.34706        0.10975
   58927.957490       0.000145       45.24376        1.44544        1.00000     0       40.18675        1.26891       39.86190        1.27353        0.32485        0.10828
   58927.957785       0.000150       43.97328        1.40132        1.00000     0       38.83374        1.22315       38.52138        1.22757        0.31236        0.10412
   58927.958086       0.000150       43.47953        1.40478        1.00000     0       38.48701        1.21768       37.93170        1.22556        0.55530        0.13883
   58927.958398       0.000162       41.14003        1.32470        1.00000     0       35.88103        1.13296       35.39762        1.13981        0.48341        0.12482
   58927.958797       0.000237       41.59046        1.10126        0.98909     0       36.82830        0.95377       36.27200        0.96024        0.55630        0.11126