/*
**
**  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
   56041.924670       0.000457       13.80621        0.45312        1.00000     0       12.67931        0.40096       12.35810        0.40552        0.32122        0.06070
   56041.925617       0.000489       12.93896        0.41679        1.00000     0       11.85403        0.37486       11.70388        0.37700        0.15015        0.04013
   56041.926953       0.000848       13.27404        0.32108        0.99705     0       12.23390        0.28965       12.05397        0.29157        0.17993        0.03341
   56041.987208       0.000518       12.03505        0.38984        0.98973     0       11.30789        0.35759       11.11146        0.35993        0.19643        0.04096
   56041.988198       0.000472       13.35546        0.42792        1.00000     0       12.27809        0.38846       12.16670        0.38979        0.11139        0.03216
   56041.989164       0.000495       12.70693        0.40869        1.00000     0       11.71539        0.37047       11.57382        0.37216        0.14157        0.03539
   56041.990168       0.000509       12.39181        0.39932        1.00000     0       11.38257        0.35995       11.22782        0.36179        0.15475        0.03647
   56041.991175       0.000498       12.71198        0.40774        1.00000     0       11.75210        0.36997       11.59376        0.37185        0.15834        0.03732
   56041.992153       0.000480       13.08142        0.41782        1.00000     0       12.08033        0.38182       11.98918        0.38291        0.09115        0.02882
   56041.993539       0.000906       12.36100        0.29806        1.00000     0       11.53356        0.27170       11.34019        0.27341        0.19336        0.03057