/*
**
**  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
   54918.956364       0.000434       15.21361        0.48595        1.00000     0
   54918.957224       0.000425       15.36048        0.49400        1.00000     0
   54918.958080       0.000431       15.17498        0.48666        1.00000     0
   54918.958942       0.000431       15.36678        0.49130        1.00000     0
   54918.959808       0.000434       15.36393        0.48714        1.00000     0
   54918.960681       0.000440       14.96302        0.47866        1.00000     0
   54918.961541       0.000420       15.71765        0.50230        1.00000     0
   54918.962374       0.000414       15.80415        0.50891        1.00000     0
   54918.963190       0.000402       16.30727        0.52244        1.00000     0
   54918.963995       0.000402       16.35199        0.52147        1.00000     0
   54918.964819       0.000422       15.57474        0.49912        1.00000     0
   54918.965679       0.000437       14.97476        0.48272        1.00000     0
   54918.966555       0.000440       15.08390        0.48214        0.99342     0
   54918.967432       0.000437       15.06437        0.48364        1.00000     0
   54918.968291       0.000422       15.83604        0.50804        1.00000     0
   54918.969122       0.000408       16.11749        0.51718        1.00000     0
   54918.969978       0.000448       14.89038        0.47932        0.98710     0
   54918.970875       0.000448       14.79435        0.47325        1.00000     0
   54918.971752       0.000428       16.29312        0.51042        1.00000     0