/*
**
**  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
   54918.956364       0.000434       15.21361        0.48595        1.00000     0       13.35557        0.42234       13.25318        0.42329        0.10240        0.02840
   54918.957224       0.000425       15.36048        0.49400        1.00000     0       13.66902        0.43161       13.47613        0.43340        0.19290        0.03937
   54918.958080       0.000431       15.17498        0.48666        1.00000     0       13.45865        0.42539       13.30799        0.42679        0.15066        0.03456
   54918.958942       0.000431       15.36678        0.49130        1.00000     0       13.49899        0.42602       13.36419        0.42728        0.13480        0.03269
   54918.959808       0.000434       15.36393        0.48714        1.00000     0       13.44906        0.42382       13.38605        0.42440        0.06301        0.02228
   54918.960681       0.000440       14.96302        0.47866        1.00000     0       13.21938        0.41741       13.08724        0.41864        0.13214        0.03205
   54918.961541       0.000420       15.71765        0.50230        1.00000     0       13.84374        0.43734       13.72152        0.43848        0.12222        0.03156
   54918.962374       0.000414       15.80415        0.50891        1.00000     0       14.07939        0.44412       13.85631        0.44619        0.22308        0.04293
   54918.963190       0.000402       16.30727        0.52244        1.00000     0       14.45573        0.45645       14.29423        0.45795        0.16150        0.03705
   54918.963995       0.000402       16.35199        0.52147        1.00000     0       14.41249        0.45576       14.31899        0.45663        0.09350        0.02819
   54918.964819       0.000422       15.57474        0.49912        1.00000     0       13.73520        0.43413       13.58954        0.43548        0.14566        0.03433
   54918.965679       0.000437       14.97476        0.48272        1.00000     0       13.26713        0.41954       13.07152        0.42136        0.19561        0.03912
   54918.966555       0.000440       15.08390        0.48214        0.99342     0       13.26713        0.41954       13.15759        0.42056        0.10954        0.02928
   54918.967432       0.000437       15.06437        0.48364        1.00000     0       13.29366        0.41996       13.12935        0.42149        0.16431        0.03586
   54918.968291       0.000422       15.83604        0.50804        1.00000     0       13.74892        0.43434       13.58708        0.43585        0.16185        0.03619
   54918.969122       0.000408       16.11749        0.51718        1.00000     0       14.20806        0.44930       14.04885        0.45078        0.15921        0.03652
   54918.969978       0.000448       14.89038        0.47932        0.98710     0       13.13288        0.41468       12.93983        0.41647        0.19305        0.03861
   54918.970875       0.000448       14.79435        0.47325        1.00000     0       13.00230        0.40994       12.85747        0.41128        0.14483        0.03323
   54918.971752       0.000428       16.29312        0.51042        1.00000     0       14.26700        0.43945       14.08339        0.44112        0.18361        0.03829