/*
**
**  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
   55391.058078       0.000159        8.03689        0.57921        1.00000     0
   55391.058382       0.000145        9.16318        0.64136        1.00000     0
   55391.058692       0.000165        7.74280        0.55546        1.00000     0
   55391.059019       0.000162        8.07533        0.56760        1.00000     0
   55391.059340       0.000159        8.62140        0.60557        0.96371     0
   55391.059751       0.000252        7.81054        0.45500        0.99210     0