/*
**
**  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
   56016.032485       0.000362       19.73625        0.63304        1.00000     0
   56016.033205       0.000359       20.15337        0.65075        1.00000     0
   56016.033911       0.000347       21.51382        0.68790        1.00000     0
   56016.034632       0.000373       19.48292        0.63814        1.00000     0
   56016.035372       0.000367       19.91230        0.64057        0.99213     0
   56016.036128       0.000388       18.82915        0.61208        1.00000     0
   56016.036877       0.000362       20.15764        0.65503        1.00000     0
   56016.037592       0.000353       20.69643        0.67309        0.99180     0
   56016.038327       0.000382       19.23372        0.61822        1.00000     0
   56016.039070       0.000362       20.23842        0.65825        1.00000     0
   56016.039788       0.000356       20.45472        0.66843        1.00000     0
   56016.040520       0.000376       19.63000        0.63161        1.00000     0
   56016.041278       0.000382       19.85193        0.63268        1.00000     0