/*
**
**  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
   59640.274550       0.000443       14.60531        0.47369        1.00000     0
   59640.275429       0.000437       14.99916        0.48109        1.00000     0
   59640.276315       0.000448       14.48643        0.46958        1.00000     0
   59640.277191       0.000428       15.12512        0.48872        1.00000     0
   59640.278028       0.000408       16.06377        0.51524        1.00000     0
   59640.278832       0.000396       16.46493        0.52965        1.00000     0
   59640.279654       0.000425       15.27353        0.49482        1.00000     0
   59640.280502       0.000422       15.46038        0.49864        1.00000     0
   59640.281355       0.000431       15.12178        0.49300        0.99329     0
   59640.282200       0.000414       15.75792        0.51149        1.00000     0
   59640.283329       0.000715       15.42714        0.38751        0.99799     0
   59640.342533       0.000417       15.04979        0.48543        0.99786     0
   59640.343369       0.000420       14.88960        0.48360        1.00000     0
   59640.344454       0.000666       14.28345        0.37479        1.00000     0