/*
**
**  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
   58255.935851       0.000469       13.30006        0.43194        1.00000     0       12.40336        0.39164       12.14586        0.39445        0.25751        0.04701
   58255.936809       0.000489       12.87568        0.41541        0.99408     0       11.96038        0.37765       11.77001        0.37973        0.19037        0.03969
   58255.937772       0.000475       13.24557        0.42512        1.00000     0       12.26432        0.38706       12.11170        0.38873        0.15262        0.03597
   58255.938707       0.000460       13.53905        0.43910        1.00000     0       12.62479        0.39883       12.37991        0.40151        0.24487        0.04628
   58255.939630       0.000463       13.56396        0.43478        1.00000     0       12.53336        0.39614       12.40300        0.39757        0.13036        0.03366
   58255.940585       0.000492       12.76081        0.40960        1.00000     0       11.80789        0.37303       11.66884        0.37455        0.13905        0.03373
   58255.941548       0.000472       13.28754        0.42636        1.00000     0       12.27810        0.38846       12.15014        0.38986        0.12796        0.03304
   58255.942503       0.000483       13.07101        0.42048        0.99401     0       12.12862        0.38259       11.95271        0.38451        0.17591        0.03839
   58255.943470       0.000483       12.86617        0.41864        1.00000     0       12.03200        0.37992       11.76555        0.38282        0.26645        0.04710
   58255.944526       0.000573       12.72426        0.37960        1.00000     0       11.79741        0.34549       11.63589        0.34713        0.16153        0.03368