/*
**
**  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
   56416.132869       0.000243       28.96395        0.93591        1.00000     0       23.96840        0.75606       23.58578        0.76142        0.38262        0.09018
   56416.133352       0.000240       28.33554        0.91113        1.00000     0       24.37786        0.76707       24.01214        0.77218        0.36572        0.08870
   56416.133835       0.000243       28.07485        0.90121        1.00000     0       23.99225        0.75644       23.69466        0.76061        0.29759        0.07953
   56416.134312       0.000234       29.39249        0.94747        1.00000     0       24.80666        0.78328       24.45395        0.78823        0.35270        0.08818
   56416.134781       0.000234       28.96325        0.93624        1.00000     0       24.73246        0.78211       24.35771        0.78737        0.37475        0.09089
   56416.135256       0.000240       28.82339        0.91556        1.00000     0       24.35372        0.76669       24.20313        0.76880        0.15059        0.05692
   56416.135742       0.000246       27.67803        0.89447        1.00000     0       23.63928        0.74642       23.26117        0.75172        0.37812        0.08912
   56416.136390       0.000402       28.66798        0.71355        0.99603     0       24.30940        0.59309       23.97408        0.59672        0.33532        0.06576