/*
**
**  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
   57131.187289       0.000226       28.80938        0.92865        1.00000     0
   57131.187749       0.000234       27.10850        0.87720        1.00000     0
   57131.188203       0.000220       28.91612        0.93375        1.00000     0
   57131.188643       0.000220       28.78941        0.93355        1.00000     0
   57131.189097       0.000234       27.08082        0.87355        1.00000     0
   57131.189563       0.000231       27.50344        0.88696        1.00000     0
   57131.190029       0.000234       27.27274        0.87954        1.00000     0
   57131.190486       0.000223       28.49428        0.92253        1.00000     0
   57131.190946       0.000237       27.40593        0.88543        0.97398     0
   57131.191421       0.000237       27.35783        0.88690        0.97395     0
   57131.191959       0.000301       27.15169        0.87906        0.77417     0
   57131.193678       0.001418       28.15397        0.65078        0.31096     0