/*
**
**  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
   59755.167324       0.000347       28.97457        0.95646        1.00000     0       16.67775        0.52766       16.41926        0.53137        0.25849        0.06269
   59755.168013       0.000341       30.28396        0.98810        1.00000     0       16.96042        0.53660       16.63570        0.54126        0.32472        0.07086
   59755.168716       0.000362       31.42950        1.04589        1.00000     0       16.05872        0.50731       15.48944        0.51544        0.56928        0.09116
   59755.169454       0.000376       29.91634        0.98031        1.00000     0       15.54895        0.48950       15.12788        0.49550        0.42107        0.07688
   59755.170191       0.000362       30.56898        1.00630        1.00000     0       16.07475        0.50757       15.62224        0.51403        0.45251        0.08127
   59755.170929       0.000376       30.20423        0.98140        1.00000     0       15.44108        0.48780       15.14633        0.49202        0.29475        0.06432
   59755.171684       0.000379       30.65069        0.99762        0.99237     0       15.39484        0.48707       15.10010        0.49130        0.29475        0.06432
   59755.172755       0.000692       26.96204        0.68980        0.99818     0       13.82213        0.34069       13.47031        0.34462        0.35182        0.05187