/*
**
**  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
   59723.195560       0.000194       32.84826        1.06482        1.00000     0
   59723.195950       0.000197       32.34332        1.04231        1.00000     0
   59723.196338       0.000191       33.27596        1.07246        1.00000     0
   59723.196720       0.000191       33.22329        1.07647        1.00000     0
   59723.197114       0.000203       31.98386        1.02014        1.00000     0
   59723.197510       0.000194       33.19151        1.07133        1.00000     0
   59723.197895       0.000191       33.55051        1.08332        1.00000     0
   59723.198271       0.000185       34.40316        1.11639        1.00000     0
   59723.198650       0.000194       33.21814        1.06758        1.00000     0
   59723.199038       0.000194       32.96231        1.05122        1.00000     0
   59723.199420       0.000188       34.62176        1.11229        1.00000     0
   59723.199805       0.000197       32.24983        1.04122        1.00000     0
   59723.200198       0.000197       32.42356        1.03546        1.00000     0
   59723.200595       0.000200       32.68736        1.04398        1.00000     0
   59723.200988       0.000194       33.75406        1.07609        1.00000     0
   59723.201376       0.000194       33.66251        1.07186        1.00000     0
   59723.201766       0.000197       32.21716        1.03965        1.00000     0
   59723.202157       0.000194       33.08219        1.06879        1.00000     0
   59723.202553       0.000203       31.36294        1.01714        1.00000     0
   59723.202953       0.000197       32.38977        1.04922        1.00000     0
   59723.203349       0.000200       32.38770        1.03837        1.00000     0
   59723.203749       0.000200       32.02207        1.03234        1.00000     0
   59723.204133       0.000185       34.94838        1.11901        1.00000     0
   59723.204504       0.000185       34.00410        1.10253        1.00000     0
   59723.204886       0.000197       32.12622        1.03783        1.00000     0
   59723.205273       0.000191       33.16259        1.07019        1.00000     0
   59723.205652       0.000188       33.41688        1.10001        1.00000     0
   59723.206037       0.000197       33.69947        1.06147        1.00000     0