/*
**
**  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
   57839.927731       0.000411       15.18147        0.48869        1.00000     0
   57839.928567       0.000425       14.70545        0.47457        1.00000     0
   57839.929403       0.000411       15.33524        0.48916        1.00000     0
   57839.930257       0.000443       13.96040        0.45110        1.00000     0
   57839.931148       0.000448       13.91451        0.44552        1.00000     0
   57839.932001       0.000405       15.34520        0.49651        1.00000     0
   57839.932832       0.000425       14.61336        0.46844        1.00000     0
   57839.933697       0.000440       14.19904        0.45693        1.00000     0
   57839.934562       0.000425       14.55454        0.46976        1.00000     0
   57839.935427       0.000440       14.09748        0.45328        1.00000     0
   57839.936301       0.000434       14.15064        0.46059        1.00000     0
   57839.937166       0.000431       14.42700        0.46346        1.00000     0
   57839.938032       0.000434       14.20047        0.46005        1.00000     0
   57839.938891       0.000425       14.59681        0.47070        1.00000     0
   57839.939797       0.000480       15.35159        0.45262        1.00000     0