/*
**
**  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
   56616.799778       0.000359       17.30047        0.55967        1.00000     0
   56616.800507       0.000370       16.81652        0.53806        1.00000     0
   56616.801265       0.000388       16.07326        0.51581        1.00000     0
   56616.802018       0.000365       17.09456        0.54974        1.00000     0
   56616.802729       0.000347       17.76737        0.57678        1.00000     0
   56616.803444       0.000367       16.94751        0.54752        1.00000     0
   56616.804167       0.000356       17.43660        0.56876        1.00000     0
   56616.804876       0.000353       17.56414        0.56942        1.00000     0
   56616.805585       0.000356       17.33087        0.55861        1.00000     0
   56616.806543       0.000602       17.44603        0.43220        0.99685     0
   56616.846676       0.000353       18.27030        0.58681        0.99507     0
   56616.847365       0.000336       19.35849        0.62487        1.00000     0
   56616.848027       0.000327       19.55314        0.63468        1.00000     0
   56616.848696       0.000341       18.84862        0.60608        1.00000     0
   56616.849587       0.000550       18.51460        0.47779        1.00000     0