/*
**
**  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
   55707.205776       0.000362       17.21856        0.54978        1.00000     0       16.13887        0.50858       15.99329        0.51066        0.14558        0.04604
   55707.206500       0.000362       17.34490        0.55330        1.00000     0       16.17092        0.50908       16.02534        0.51116        0.14558        0.04604
   55707.207252       0.000391       16.07136        0.51343        1.00000     0       14.85436        0.46950       14.74652        0.47105        0.10783        0.03813
   55707.208019       0.000376       16.51343        0.52974        1.00000     0       15.45650        0.48805       15.28853        0.49045        0.16797        0.04849
   55707.208771       0.000376       16.48769        0.52736        1.00000     0       15.42568        0.48756       15.29970        0.48936        0.12598        0.04199
   55707.209515       0.000367       16.92026        0.54177        1.00000     0       15.75852        0.49858       15.62956        0.50043        0.12896        0.04299
   55707.210273       0.000391       16.05381        0.51797        0.99259     0       14.98016        0.47324       14.76288        0.47635        0.21728        0.05432
   55707.211045       0.000382       16.14676        0.52058        1.00000     0       15.19196        0.48017       14.98517        0.48313        0.20679        0.05339
   55707.211838       0.000411       15.02582        0.49226        1.00000     0       14.12210        0.44636       13.77610        0.45130        0.34600        0.06659
   55707.212654       0.000405       15.22681        0.49159        1.00000     0       14.32385        0.45273       14.11588        0.45571        0.20797        0.05199
   55707.213447       0.000388       15.87488        0.51276        1.00000     0       14.95026        0.47277       14.73298        0.47588        0.21728        0.05432
   55707.214199       0.000365       17.19555        0.55144        1.00000     0       15.91539        0.50304       15.75652        0.50531        0.15886        0.04790
   55707.214952       0.000388       16.02360        0.51598        1.00000     0       14.96521        0.47301       14.77509        0.47573        0.19012        0.05081
   55707.215730       0.000391       16.02573        0.51534        1.00000     0       14.92856        0.47067       14.72637        0.47356        0.20219        0.05221
   55707.216511       0.000391       16.11356        0.51700        1.00000     0       14.83952        0.46927       14.69125        0.47139        0.14827        0.04471
   55707.217463       0.000561       15.41869        0.42055        1.00000     0       14.26085        0.38375       14.12954        0.38535        0.13132        0.03510