/*
**
**  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
   57541.240519       0.000185       34.15505        1.09562        1.00000     0
   57541.240878       0.000174       36.93630        1.16908        1.00000     0
   57541.241239       0.000188       33.75151        1.07522        1.00000     0
   57541.241610       0.000182       34.57481        1.10047        1.00000     0
   57541.241983       0.000191       33.14612        1.05233        1.00000     0
   57541.242371       0.000197       32.08346        1.02379        1.00000     0
   57541.242756       0.000188       33.55702        1.06845        1.00000     0
   57541.243132       0.000188       33.62112        1.06986        1.00000     0
   57541.243505       0.000185       34.72628        1.10548        1.00000     0
   57541.243875       0.000185       34.62601        1.10115        1.00000     0
   57541.244254       0.000194       32.64759        1.03606        1.00000     0
   57541.244633       0.000185       34.20963        1.08896        1.00000     0
   57541.245021       0.000203       31.27508        0.99690        1.00000     0
   57541.245415       0.000191       33.30476        1.05802        1.00000     0
   57541.245802       0.000197       32.24648        1.03160        1.00000     0
   57541.246184       0.000185       34.17950        1.08568        1.00000     0
   57541.246561       0.000191       32.75768        1.05434        1.00000     0
   57541.246942       0.000191       33.48967        1.06586        1.00000     0
   57541.247324       0.000191       33.19304        1.06252        1.00000     0
   57541.247695       0.000179       35.62901        1.13132        1.00000     0
   57541.248062       0.000188       34.27551        1.09935        1.00000     0
   57541.248433       0.000182       35.37568        1.11981        1.00000     0
   57541.248806       0.000191       33.46407        1.06277        1.00000     0
   57541.249199       0.000203       31.32083        0.99664        1.00000     0
   57541.249590       0.000188       33.63673        1.07036        1.00000     0
   57541.249984       0.000205       30.85399        0.98646        1.00000     0
   57541.250371       0.000182       34.41600        1.10112        1.00000     0
   57541.250736       0.000182       34.50382        1.09979        1.00000     0
   57541.251121       0.000203       31.26731        1.00307        1.00000     0
   57541.251699       0.000376       32.62189        0.74773        1.00000     0