/*
**
**  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)
**   RawRate                  - Raw source count rate (cts/s)
**   RawError                 - 1 sigma error in the raw count rate (cts/s)
**   NetRate                  - Background subtracted count rate (cts/s)
**   NetError                 - 1 sigma error in the background subtracted count rate (cts/s)
**   BackRate                 - Background count rate (cts/s)
**   BackError                - 1 sigma error in the background count rate (cts/s)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode        RawRate       RawError        NetRate       NetError       BackRate      BackError
   54916.950752       0.000344       19.77135        0.63067        1.00000     0       16.91893        0.53369       16.77327        0.53501        0.14566        0.03761
   54916.951434       0.000339       20.18785        0.64599        1.00000     0       17.27663        0.54389       17.05934        0.54586        0.21729        0.04633
   54916.952126       0.000353       19.11127        0.61254        1.00000     0       16.42078        0.51927       16.25029        0.52082        0.17050        0.04019
   54916.952820       0.000341       19.85336        0.63608        1.00000     0       17.11324        0.53902       16.88800        0.54106        0.22524        0.04697
   54916.953524       0.000362       18.62957        0.59586        1.00000     0       16.09079        0.50782       15.92439        0.50933        0.16640        0.03922
   54916.954244       0.000359       18.86187        0.60257        1.00000     0       16.18824        0.51141       16.04846        0.51268        0.13979        0.03609
   54916.954936       0.000333       20.29151        0.64944        1.00000     0       17.42031        0.55088       17.25953        0.55234        0.16078        0.04019
   54916.955624       0.000356       18.86360        0.60368        1.00000     0       16.28728        0.51505       16.13696        0.51642        0.15032        0.03758
   54916.956333       0.000353       19.22539        0.61738        1.00000     0       16.50289        0.52057       16.27556        0.52263        0.22733        0.04640
   54916.957036       0.000350       19.20489        0.61655        1.00000     0       16.62272        0.52461       16.40306        0.52660        0.21966        0.04580
   54916.957751       0.000365       18.41604        0.58979        1.00000     0       15.89949        0.50279       15.74358        0.50421        0.15591        0.03781
   54916.958466       0.000350       19.31337        0.61678        1.00000     0       16.67239        0.52539       16.50048        0.52695        0.17190        0.04052
   54916.959183       0.000367       18.26889        0.58538        1.00000     0       15.75852        0.49858       15.60384        0.49999        0.15468        0.03752
   54916.959912       0.000362       18.73532        0.59727        1.00000     0       16.17093        0.50908       16.01377        0.51051        0.15716        0.03812
   54916.960630       0.000356       19.02969        0.60563        1.00000     0       16.36872        0.51634       16.25598        0.51736        0.11274        0.03255
   54916.961391       0.000405       19.06090        0.56929        1.00000     0       16.44166        0.48505       16.28483        0.48638        0.15683        0.03598