/*
**
**  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
   55649.083915       0.000284       22.07049        0.70787        1.00000     0
   55649.084491       0.000292       21.67551        0.69109        1.00000     0
   55649.085050       0.000266       23.34396        0.75078        1.00000     0
   55649.085594       0.000278       22.51550        0.72116        1.00000     0
   55649.086158       0.000286       22.01663        0.69868        1.00000     0
   55649.086725       0.000281       22.29660        0.71805        1.00000     0
   55649.087284       0.000278       22.37383        0.71771        1.00000     0
   55649.087828       0.000266       23.44347        0.74989        1.00000     0
   55649.088383       0.000289       21.55800        0.69372        1.00000     0
   55649.088959       0.000286       21.74504        0.69847        1.00000     0
   55649.089529       0.000284       22.10929        0.70431        1.00000     0
   55649.090093       0.000281       22.25502        0.71207        1.00000     0
   55649.090643       0.000269       23.08610        0.74888        1.00000     0
   55649.091184       0.000272       23.06972        0.74333        1.00000     0
   55649.091737       0.000281       22.04043        0.71164        1.00000     0
   55649.092295       0.000278       22.24982        0.71878        1.00000     0
   55649.092868       0.000295       21.15765        0.68156        1.00000     0
   55649.093450       0.000286       21.57690        0.69758        1.00000     0
   55649.094017       0.000281       21.96173        0.71281        1.00000     0
   55649.094581       0.000284       22.18815        0.70905        1.00000     0
   55649.095142       0.000278       22.26123        0.72196        1.00000     0
   55649.095973       0.000553       21.82570        0.50397        1.00000     0