/*
**
**  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
   56780.991412       0.000312       20.10156        0.64963        1.00000     0       18.60501        0.58746       18.30720        0.59164        0.29782        0.07020
   56780.992035       0.000310       20.41041        0.65654        1.00000     0       18.76017        0.59266       18.52637        0.59594        0.23380        0.06249
   56780.992648       0.000304       21.02155        0.66947        1.00000     0       19.25106        0.60605       19.09790        0.60820        0.15316        0.05105
   56780.993264       0.000312       20.36211        0.65037        1.00000     0       18.66066        0.58834       18.49521        0.59066        0.16545        0.05232
   56780.993889       0.000312       20.28276        0.65211        1.00000     0       18.69776        0.58892       18.43303        0.59263        0.26473        0.06618
   56780.994526       0.000324       19.53122        0.62761        1.00000     0       18.04787        0.56817       17.79260        0.57175        0.25527        0.06382
   56780.995197       0.000347       18.04380        0.58283        1.00000     0       16.67773        0.52766       16.43948        0.53101        0.23825        0.05956
   56780.996036       0.000492       20.99803        0.52724        0.99539     0       19.32110        0.47827       19.13102        0.48036        0.19008        0.04480