/*
**
**  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
   55604.379848       0.000651        2.17227        0.15680        0.97333     0        1.82953        0.12937        1.79657        0.12967        0.03296        0.00881
   55604.381147       0.000648        2.15998        0.15623        0.98214     0        1.83943        0.12942        1.79490        0.12982        0.04452        0.01021
   55604.382469       0.000674        2.11770        0.15195        0.96567     0        1.78074        0.12592        1.75783        0.12613        0.02291        0.00725
   55604.383763       0.000619        2.27799        0.16572        0.97196     0        1.93592        0.13655        1.88387        0.13702        0.05205        0.01136
   55604.385030       0.000648        2.17496        0.15791        0.97321     0        1.83792        0.12996        1.79536        0.13035        0.04257        0.01003
   55604.386430       0.000752        1.93686        0.13836        0.95000     0        1.62213        0.11470        1.60752        0.11484        0.01461        0.00552
   55604.387898       0.000709        1.97536        0.14363        0.97551     0        1.67643        0.11854        1.63545        0.11891        0.04098        0.00940
   55604.389321       0.000715        1.99772        0.14548        0.95547     0        1.69774        0.12005        1.65405        0.12045        0.04369        0.00977
   55604.390690       0.000654        2.22953        0.15841        0.96460     0        1.84711        0.13029        1.83529        0.13039        0.01182        0.00529
   55604.392527       0.001183        2.26013        0.12053        0.96333     0        1.88639        0.09794        1.84190        0.09823        0.04449        0.00763