/*
**
**  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
   58172.321722       0.000275       27.90770        0.90900        1.00000     0
   58172.322278       0.000281       26.61065        0.87370        1.00000     0
   58172.322816       0.000258       28.21294        0.92728        1.00000     0
   58172.323346       0.000272       26.78616        0.87263        1.00000     0
   58172.323872       0.000255       28.66090        0.92812        1.00000     0
   58172.324379       0.000252       29.58122        0.95350        1.00000     0
   58172.324902       0.000272       26.74724        0.85936        1.00000     0
   58172.325438       0.000263       27.34655        0.88871        1.00000     0
   58172.325970       0.000269       27.00533        0.86934        1.00000     0
   58172.326503       0.000263       27.71885        0.89659        1.00000     0
   58172.327029       0.000263       27.11942        0.88325        1.00000     0
   58172.327556       0.000263       27.56574        0.89146        1.00000     0
   58172.328080       0.000260       27.71898        0.90602        1.00000     0
   58172.328603       0.000263       27.33551        0.88209        1.00000     0
   58172.329127       0.000260       27.59482        0.90036        1.00000     0
   58172.329648       0.000260       27.82559        0.89671        1.00000     0
   58172.330169       0.000260       27.38081        0.88697        1.00000     0
   58172.330692       0.000263       27.19979        0.88255        1.00000     0
   58172.331233       0.000278       25.85221        0.84437        1.00000     0
   58172.332023       0.000512       27.03191        0.63300        1.00000     0