/*
**
**  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
   56366.253527       0.000307       20.72929        0.66244        1.00000     0
   56366.254149       0.000315       20.28671        0.65101        1.00000     0
   56366.254785       0.000321       19.81000        0.62873        1.00000     0
   56366.255416       0.000310       20.41814        0.64931        1.00000     0
   56366.256035       0.000310       20.50400        0.65266        1.00000     0
   56366.256655       0.000310       20.72816        0.66489        1.00000     0
   56366.257288       0.000324       19.49808        0.62934        1.00000     0
   56366.257922       0.000310       20.47053        0.65381        1.00000     0
   56366.258541       0.000310       20.34876        0.65018        1.00000     0
   56366.259169       0.000318       19.84617        0.63798        1.00000     0
   56366.259800       0.000312       20.26562        0.64815        1.00000     0
   56366.260422       0.000310       20.50087        0.65290        1.00000     0
   56366.261044       0.000312       20.23328        0.64606        1.00000     0
   56366.261663       0.000307       20.55241        0.65726        1.00000     0
   56366.262566       0.000596       20.25617        0.46952        1.00000     0