/*
**
**  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
   59946.250890       0.000122       56.01659        1.75052        1.00000     0
   59946.251125       0.000113       57.96095        1.85535        1.00000     0
   59946.251350       0.000113       59.06525        1.86400        1.00000     0
   59946.251573       0.000110       60.50981        1.92777        1.00000     0
   59946.251799       0.000116       57.28984        1.80910        1.00000     0
   59946.252030       0.000116       57.36784        1.84972        1.00000     0
   59946.252259       0.000113       58.82594        1.88009        1.00000     0
   59946.252485       0.000113       58.36775        1.87947        1.00000     0
   59946.252707       0.000110       60.87559        1.92023        1.00000     0
   59946.252930       0.000113       59.03514        1.87880        1.00000     0
   59946.253156       0.000113       57.45674        1.84464        1.00000     0
   59946.253385       0.000116       57.04490        1.81878        1.00000     0
   59946.253616       0.000116       57.33684        1.82094        1.00000     0
   59946.253845       0.000113       57.82722        1.83988        1.00000     0
   59946.254070       0.000113       58.74477        1.85609        1.00000     0
   59946.254302       0.000119       55.94016        1.77082        1.00000     0
   59946.254536       0.000116       57.59053        1.83198        1.00000     0
   59946.254762       0.000110       60.26865        1.90047        1.00000     0
   59946.254982       0.000110       60.82685        1.90874        1.00000     0
   59946.255207       0.000116       57.32457        1.81031        1.00000     0
   59946.255436       0.000113       58.30104        1.85694        1.00000     0
   59946.255662       0.000113       58.95796        1.85859        1.00000     0
   59946.255885       0.000110       60.43467        1.90909        1.00000     0
   59946.256104       0.000110       61.04034        1.94085        1.00000     0
   59946.256324       0.000110       60.89959        1.93845        1.00000     0
   59946.256544       0.000110       60.86754        1.92227        1.00000     0
   59946.256764       0.000110       60.47026        1.92176        1.00000     0
   59946.256987       0.000113       60.06279        1.89776        1.00000     0
   59946.257213       0.000113       59.01353        1.86796        1.00000     0
   59946.257485       0.000159       57.10837        1.57334        0.98217     0