/*
**
**  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
   56763.721295       0.000341       18.29846        0.59470        1.00000     0
   56763.721992       0.000356       17.45213        0.56589        1.00000     0
   56763.722701       0.000353       17.57714        0.57009        1.00000     0
   56763.723413       0.000359       17.43292        0.56305        1.00000     0
   56763.724116       0.000344       18.20242        0.58683        1.00000     0
   56763.724816       0.000356       17.65314        0.56603        1.00000     0
   56763.725496       0.000324       19.27341        0.62038        1.00000     0
   56763.726156       0.000336       18.56222        0.60078        1.00000     0
   56763.726859       0.000367       16.98374        0.54826        1.00000     0
   56763.727568       0.000341       18.39895        0.58901        1.00000     0
   56763.728242       0.000333       18.85252        0.60653        1.00000     0
   56763.728917       0.000341       18.29832        0.59085        1.00000     0
   56763.729599       0.000341       18.52269        0.58947        1.00000     0
   56763.730282       0.000341       18.31877        0.58719        1.00000     0
   56763.730974       0.000350       17.83397        0.57314        1.00000     0
   56763.731645       0.000321       19.47906        0.62537        1.00000     0
   56763.732302       0.000336       18.65373        0.59856        1.00000     0
   56763.732979       0.000341       18.33780        0.59289        1.00000     0
   56763.733671       0.000350       18.20974        0.58374        1.00000     0