/*
**
**  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
   57076.284560       0.000266       25.08357        0.80435        1.00000     0
   57076.285084       0.000258       26.00384        0.83298        1.00000     0
   57076.285602       0.000260       25.69075        0.82084        1.00000     0
   57076.286137       0.000275       24.13110        0.77785        1.00000     0
   57076.286693       0.000281       23.55112        0.76257        1.00000     0
   57076.287243       0.000269       24.64125        0.79369        1.00000     0
   57076.287781       0.000269       24.77722        0.79453        1.00000     0
   57076.288371       0.000321       23.61049        0.71508        0.99390     0