/*
**
**  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
   57517.915546       0.000298       21.72984        0.70274        1.00000     0
   57517.916130       0.000286       22.24768        0.72577        1.00000     0
   57517.916721       0.000304       20.97796        0.67986        1.00000     0
   57517.917311       0.000286       22.34529        0.71703        1.00000     0
   57517.917892       0.000295       21.68804        0.69894        1.00000     0
   57517.918471       0.000284       22.87912        0.74059        1.00000     0
   57517.919047       0.000292       21.90386        0.70459        1.00000     0
   57517.919640       0.000301       21.53428        0.69277        1.00000     0
   57517.920236       0.000295       21.81295        0.70021        1.00000     0
   57517.920818       0.000286       22.73547        0.72699        1.00000     0
   57517.921396       0.000292       21.94861        0.70530        1.00000     0
   57517.921995       0.000307       20.92328        0.67507        1.00000     0
   57517.922591       0.000289       22.06321        0.72034        1.00000     0
   57517.923164       0.000284       22.55756        0.72599        1.00000     0
   57517.923737       0.000289       22.15028        0.71557        1.00000     0
   57517.924316       0.000289       22.20351        0.71505        1.00000     0
   57517.924895       0.000289       22.67008        0.72232        1.00000     0
   57517.925465       0.000281       22.69172        0.73915        1.00000     0
   57517.926029       0.000284       22.57895        0.72453        1.00000     0
   57517.926628       0.000315       20.36808        0.65682        1.00000     0
   57517.927340       0.000396       21.28870        0.59762        1.00000     0