/*
**
**  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
   55974.184959       0.000431       14.50185        0.46286        1.00000     0
   55974.185809       0.000420       14.93009        0.48265        1.00000     0
   55974.186654       0.000425       14.51144        0.46895        1.00000     0
   55974.187482       0.000402       15.51193        0.50143        1.00000     0
   55974.188312       0.000428       14.48060        0.46618        1.00000     0
   55974.189151       0.000411       15.16601        0.49013        1.00000     0
   55974.189988       0.000425       14.64057        0.47805        1.00000     0
   55974.190838       0.000425       14.67232        0.47213        1.00000     0
   55974.191706       0.000443       13.96926        0.45096        1.00000     0
   55974.192603       0.000454       13.61486        0.43988        1.00000     0
   55974.193480       0.000422       14.59852        0.47317        1.00000     0
   55974.194345       0.000443       14.10651        0.45120        1.00000     0
   55974.195231       0.000443       13.97084        0.45101        1.00000     0
   55974.196110       0.000437       14.15024        0.45494        1.00000     0
   55974.197216       0.000668       14.67152        0.37576        1.00000     0