/*
**
**  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
   55568.444755       0.000524       11.91504        0.38159        1.00000     0
   55568.445791       0.000512       12.02075        0.38849        1.00000     0
   55568.446821       0.000518       11.90504        0.38313        1.00000     0
   55568.447863       0.000524       11.65627        0.38090        1.00000     0
   55568.448881       0.000495       12.42594        0.40647        0.99415     0
   55568.449888       0.000512       11.96231        0.38854        1.00000     0
   55568.450892       0.000492       12.45491        0.40454        1.00000     0
   55568.451896       0.000512       12.02296        0.38948        1.00000     0
   55568.452892       0.000483       12.78590        0.41106        1.00000     0
   55568.453502       0.000127       10.56545        0.73125        1.00000     0
   55568.454168       0.000538       11.48864        0.36857        1.00000     0
   55568.455207       0.000501       12.30471        0.39859        1.00000     0
   55568.456671       0.000964       11.82613        0.28250        0.99399     0