/*
**
**  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
   55941.114552       0.000454       13.65282        0.44086        1.00000     0
   55941.115457       0.000451       13.68713        0.44235        1.00000     0
   55941.116354       0.000446       13.83300        0.44570        1.00000     0
   55941.117260       0.000460       13.39708        0.43395        0.99371     0
   55941.118186       0.000466       13.29932        0.42502        1.00000     0
   55941.119095       0.000443       14.03489        0.44754        1.00000     0
   55941.120003       0.000466       13.27879        0.42566        1.00000     0
   55941.120915       0.000446       13.81011        0.44556        1.00000     0
   55941.121812       0.000451       13.52455        0.44048        1.00000     0
   55941.122697       0.000434       14.08240        0.45663        1.00000     0
   55941.123603       0.000472       12.94140        0.42120        1.00000     0
   55941.124511       0.000437       14.24303        0.45432        1.00000     0
   55941.125654       0.000706       14.06636        0.35747        1.00000     0