/*
**
**  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
   54916.950752       0.000344       19.77135        0.63067        1.00000     0
   54916.951434       0.000339       20.18785        0.64599        1.00000     0
   54916.952126       0.000353       19.11127        0.61254        1.00000     0
   54916.952820       0.000341       19.85336        0.63608        1.00000     0
   54916.953524       0.000362       18.62957        0.59586        1.00000     0
   54916.954244       0.000359       18.86187        0.60257        1.00000     0
   54916.954936       0.000333       20.29151        0.64944        1.00000     0
   54916.955624       0.000356       18.86360        0.60368        1.00000     0
   54916.956333       0.000353       19.22539        0.61738        1.00000     0
   54916.957036       0.000350       19.20489        0.61655        1.00000     0
   54916.957751       0.000365       18.41604        0.58979        1.00000     0
   54916.958466       0.000350       19.31337        0.61678        1.00000     0
   54916.959183       0.000367       18.26889        0.58538        1.00000     0
   54916.959912       0.000362       18.73532        0.59727        1.00000     0
   54916.960630       0.000356       19.02969        0.60563        1.00000     0
   54916.961391       0.000405       19.06090        0.56929        1.00000     0