/*
**
**  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
   57520.974210       0.000388       16.11223        0.52184        1.00000     0
   57520.974988       0.000391       15.91868        0.52162        1.00000     0
   57520.975778       0.000399       15.67302        0.50902        1.00000     0
   57520.976562       0.000385       16.44716        0.53547        1.00000     0
   57520.977332       0.000385       16.46807        0.53439        1.00000     0
   57520.978104       0.000388       16.17381        0.52616        1.00000     0
   57520.978906       0.000414       15.17076        0.49359        1.00000     0
   57520.979702       0.000382       16.52936        0.53732        1.00000     0
   57520.980480       0.000396       15.98720        0.51742        1.00000     0
   57520.981261       0.000385       16.55959        0.53280        1.00000     0
   57520.982063       0.000417       15.21299        0.49350        1.00000     0
   57520.982879       0.000399       16.00171        0.51511        1.00000     0
   57520.983987       0.000709       16.36207        0.38965        1.00000     0