/*
**
**  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
   54922.978364       0.000327       18.97660        0.61066        1.00000     0
   54922.979006       0.000315       19.82811        0.63975        1.00000     0
   54922.979637       0.000315       19.73889        0.63199        1.00000     0
   54922.980268       0.000315       19.89429        0.63498        0.99083     0
   54922.980887       0.000304       20.49509        0.65724        1.00000     0
   54922.981532       0.000341       18.18803        0.58803        1.00000     0
   54922.982192       0.000318       19.70467        0.63053        1.00000     0
   54922.982828       0.000318       19.51220        0.62440        1.00000     0
   54922.983491       0.000344       18.39517        0.58623        0.98325     0
   54922.984157       0.000321       19.53066        0.62279        1.00000     0
   54922.984782       0.000304       20.48239        0.65615        1.00000     0
   54922.985418       0.000333       18.79879        0.60375        1.00000     0
   54922.986263       0.000512       19.33892        0.49903        0.99486     0