/*
**
**  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)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode
   59941.474079       0.000194       44.73244        1.44733        1.00000     0
   59941.474481       0.000208       46.14166        1.49559        1.00000     0
   59941.474874       0.000185       48.24255        1.53870        1.00000     0
   59941.475245       0.000185       45.30305        1.46635        1.00000     0
   59941.475615       0.000185       44.68682        1.43758        1.00000     0
   59941.475980       0.000179       47.08081        1.51148        1.00000     0
   59941.476336       0.000177       47.98700        1.55695        1.00000     0
   59941.476706       0.000194       44.45646        1.42275        1.00000     0
   59941.477088       0.000188       44.90461        1.43712        1.00000     0
   59941.477467       0.000191       43.98513        1.42957        1.00000     0
   59941.477843       0.000185       45.01801        1.45250        1.00000     0
   59941.478211       0.000182       46.08021        1.47259        1.00000     0
   59941.478572       0.000179       46.67655        1.49764        1.00000     0
   59941.478934       0.000182       45.85154        1.47728        1.00000     0
   59941.479287       0.000171       49.53910        1.58880        1.00000     0
   59941.479649       0.000191       44.57092        1.42000        1.00000     0
   59941.480013       0.000174       48.33645        1.54415        1.00000     0
   59941.480381       0.000194       42.97330        1.39840        1.00000     0
   59941.480763       0.000188       44.49751        1.43005        1.00000     0
   59941.481136       0.000185       45.36634        1.45236        1.00000     0
   59941.481500       0.000179       46.87006        1.49393        1.00000     0
   59941.481851       0.000171       49.54682        1.58337        1.00000     0
   59941.482212       0.000191       43.67381        1.40136        1.00000     0
   59941.482586       0.000182       45.19482        1.47143        1.00000     0
   59941.482944       0.000177       47.13052        1.51713        1.00000     0
   59941.483315       0.000194       42.75782        1.37997        1.00000     0
   59941.483755       0.000246       47.25129        1.28085        1.00000     0