/*
**
**  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
   57511.931747       0.000289       22.25482        0.71367        1.00000     0
   57511.932314       0.000278       23.10473        0.73900        1.00000     0
   57511.932856       0.000263       24.19064        0.77435        1.00000     0
   57511.933394       0.000275       23.19305        0.74075        1.00000     0
   57511.933970       0.000301       21.18588        0.67665        1.00000     0
   57511.934560       0.000289       21.94612        0.70207        1.00000     0
   57511.935147       0.000298       21.32825        0.68343        1.00000     0
   57511.935732       0.000286       22.37707        0.71538        1.00000     0
   57511.936307       0.000289       21.99748        0.70235        1.00000     0
   57511.936883       0.000286       22.40572        0.71622        1.00000     0
   57511.937456       0.000286       22.42525        0.71274        1.00000     0
   57511.938044       0.000301       21.34174        0.67685        1.00000     0
   57511.938617       0.000272       23.62362        0.75249        1.00000     0
   57511.939181       0.000292       21.71582        0.69563        1.00000     0
   57511.939777       0.000304       20.93986        0.66947        1.00000     0
   57511.940356       0.000275       23.11172        0.74126        1.00000     0
   57511.940914       0.000284       22.44942        0.71678        1.00000     0
   57511.941678       0.000480       21.12147        0.53817        1.00000     0