/*
**
**  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
   59736.266105       0.000165       38.43650        1.23713        1.00000     0
   59736.266432       0.000162       39.17995        1.25698        1.00000     0
   59736.266750       0.000156       41.09580        1.31033        1.00000     0
   59736.267074       0.000168       37.90532        1.20475        1.00000     0
   59736.267396       0.000153       41.78210        1.32045        1.00000     0
   59736.267705       0.000156       40.69403        1.29339        1.00000     0
   59736.268018       0.000156       40.28086        1.28461        1.00000     0
   59736.268330       0.000156       40.25158        1.28757        1.00000     0
   59736.268646       0.000159       39.62806        1.26356        1.00000     0
   59736.268961       0.000156       40.42774        1.29380        1.00000     0
   59736.269276       0.000159       40.05954        1.28904        0.98182     0
   59736.269598       0.000162       39.27397        1.25575        1.00000     0
   59736.269913       0.000153       40.64228        1.31271        1.00000     0
   59736.270225       0.000159       39.71368        1.26819        1.00000     0
   59736.270552       0.000168       37.51834        1.20254        1.00000     0
   59736.270882       0.000162       38.61003        1.24344        1.00000     0
   59736.271198       0.000153       41.46883        1.32130        1.00000     0
   59736.271507       0.000156       40.41965        1.29354        1.00000     0
   59736.271828       0.000165       38.78622        1.23390        1.00000     0
   59736.272155       0.000162       38.81924        1.25613        1.00000     0
   59736.272468       0.000150       41.80625        1.33843        1.00000     0
   59736.272775       0.000156       40.34107        1.29236        1.00000     0
   59736.273093       0.000162       38.62656        1.25122        1.00000     0
   59736.273414       0.000159       39.22699        1.26462        1.00000     0
   59736.273732       0.000159       39.33272        1.26883        1.00000     0
   59736.274054       0.000162       38.62651        1.24812        1.00000     0
   59736.274369       0.000153       41.11365        1.31534        1.00000     0
   59736.274687       0.000165       38.18773        1.21723        1.00000     0
   59736.275008       0.000156       40.52235        1.29162        1.00000     0
   59736.275408       0.000243       39.92192        1.03254        1.00000     0