/*
**
**  Swift/XRT light curve for Mrk 501.
**
**  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
   55637.253031       0.000385        3.54735        0.25487        0.98496     0        3.05853        0.21627        3.01560        0.21666        0.04293        0.01294
   55637.253838       0.000422        3.27563        0.23639        0.96575     0        2.84161        0.20093        2.79085        0.20139        0.05076        0.01357
   55637.254648       0.000388        3.47102        0.25231        0.97761     0        3.05853        0.21627        2.98438        0.21694        0.07415        0.01701
   55637.255430       0.000394        3.41323        0.24451        0.99265     0        2.96790        0.20986        2.93382        0.21017        0.03408        0.01136
   55637.256179       0.000356        3.81206        0.27549        0.97561     0        3.33889        0.23610        3.27499        0.23667        0.06391        0.01650
   55637.256940       0.000405        3.32675        0.23763        0.99286     0        2.88250        0.20382        2.85675        0.20406        0.02575        0.00973
   55637.257715       0.000370        3.76496        0.26815        0.96094     0        3.25746        0.23034        3.23667        0.23052        0.02078        0.00929
   55637.258439       0.000353        3.80264        0.27360        0.99180     0        3.31130        0.23414        3.26060        0.23460        0.05070        0.01464
   55637.259125       0.000333        4.07617        0.29327        0.98261     0        3.54573        0.25072        3.49143        0.25121        0.05429        0.01567
   55637.259857       0.000399        3.38830        0.24450        0.97826     0        2.96790        0.20986        2.91488        0.21034        0.05302        0.01417
   55637.260649       0.000394        3.52400        0.25217        0.97059     0        3.05053        0.21517        3.01180        0.21552        0.03873        0.01225
   55637.261379       0.000336        4.02858        0.28944        0.98276     0        3.51462        0.24852        3.46529        0.24897        0.04933        0.01487
   55637.262044       0.000330        4.13812        0.29559        0.99123     0        3.54573        0.25072        3.51406        0.25101        0.03167        0.01197
   55637.262770       0.000396        3.44512        0.24554        0.98540     0        2.99758        0.21091        2.96350        0.21122        0.03408        0.01136
   55637.263523       0.000356        3.80383        0.27338        0.98374     0        3.32786        0.23473        3.27293        0.23522        0.05493        0.01523
   55637.264272       0.000394        3.40311        0.24380        1.00000     0        2.94608        0.20832        2.91225        0.20862        0.03383        0.01128
   55637.265033       0.000367        3.85620        0.27555        0.95274     0        3.32792        0.23473        3.28989        0.23508        0.03803        0.01268
   55637.266020       0.000619        3.89618        0.21064        0.97664     0        3.34528        0.17907        3.31593        0.17927        0.02935        0.00847