/*
**
**  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
   55980.337271       0.000127       10.95982        0.76538        1.00000     0        9.51584        0.65822        9.44075        0.65929        0.07509        0.03754
   55980.337517       0.000119       11.53400        0.81348        1.00000     0        9.96782        0.69789        9.90738        0.69876        0.06044        0.03489
   55980.338217       0.000582       11.58497        0.36966        0.99502     0       10.00666        0.31660        9.93645        0.31705        0.07021        0.01703
   55980.339189       0.000391       11.46848        0.44802        1.00000     0        9.98700        0.38497        9.87687        0.38584        0.11013        0.02596
   55980.340045       0.000466       11.52641        0.41112        1.00000     0        9.96690        0.35216        9.88995        0.35272        0.07695        0.01987
   55980.340630       0.000119       11.44560        0.80926        1.00000     0        9.91895        0.69617        9.85852        0.69705        0.06044        0.03489
   55980.340867       0.000119       11.45607        0.81196        1.00000     0        9.96782        0.69789        9.86709        0.69934        0.10073        0.04505
   55980.341113       0.000127       10.86455        0.76425        1.00000     0        9.47031        0.65665        9.35768        0.65826        0.11263        0.04598
   55980.341784       0.000544       12.30591        0.39284        1.00000     0       10.69866        0.33765       10.59761        0.33830        0.10105        0.02107
   55980.342447       0.000119       11.41165        0.81280        1.00000     0        9.96782        0.69789        9.82680        0.69992        0.14102        0.05330
   55980.342684       0.000119       11.41472        0.80711        1.00000     0        9.87009        0.69446        9.82980        0.69504        0.04029        0.02849
   55980.343263       0.000460       11.51526        0.41464        1.00000     0        9.99148        0.35481        9.87719        0.35564        0.11429        0.02437
   55980.343845       0.000122       11.03480        0.79410        1.00000     0        9.53969        0.67456        9.40203        0.67656        0.13766        0.05203
   55980.344099       0.000133       10.39914        0.73715        1.00000     0        8.88436        0.62203        8.79458        0.62332        0.08978        0.04015
   55980.344365       0.000133       10.05882        0.71836        1.00000     0        8.75370        0.61744        8.66393        0.61874        0.08978        0.04015
   55980.344617       0.000119       11.34439        0.80811        1.00000     0        9.87009        0.69446        9.76936        0.69592        0.10073        0.04505
   55980.345297       0.000561       11.94714        0.38122        1.00000     0       10.33680        0.32671       10.25590        0.32724        0.08089        0.01856
   55980.345980       0.000122       10.93701        0.78705        1.00000     0        9.53969        0.67456        9.40203        0.67656        0.13766        0.05203
   55980.346565       0.000463       11.52285        0.41436        0.99375     0        9.99148        0.35481        9.88758        0.35557        0.10390        0.02323
   55980.347155       0.000127       10.83548        0.76225        1.00000     0        9.42478        0.65507        9.33092        0.65641        0.09386        0.04198
   55980.347939       0.000657       11.73778        0.35031        1.00000     0       10.25496        0.30084       10.10941        0.30172        0.14555        0.02301