/*
**
**  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
   55278.018853       0.000362       27.93662        0.91040        1.00000     0
   55278.019568       0.000353       28.72226        0.93476        0.99180     0
   55278.020279       0.000359       28.36781        0.91399        1.00000     0
   55278.021000       0.000362       27.61237        0.90563        1.00000     0
   55278.021723       0.000362       27.36636        0.90671        1.00000     0
   55278.022429       0.000344       29.27188        0.94886        1.00000     0
   55278.023130       0.000356       28.03445        0.92225        1.00000     0
   55278.023859       0.000373       26.86695        0.87775        1.00000     0
   55278.024597       0.000365       27.47005        0.89760        1.00000     0
   55278.025308       0.000347       29.00898        0.93957        1.00000     0
   55278.026023       0.000367       27.50337        0.89412        1.00000     0
   55278.026726       0.000336       30.06254        0.97506        1.00000     0
   55278.027418       0.000356       28.34135        0.92143        1.00000     0
   55278.028141       0.000367       27.29638        0.88908        1.00000     0
   55278.029165       0.000657       29.42476        0.69383        1.00000     0