/*
**
**  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
   59308.904860       0.000307       20.80877        0.66439        1.00000     0       18.89935        0.59765       18.76588        0.59914        0.13347        0.04221
   59308.905482       0.000315       20.09626        0.64634        1.00000     0       18.36081        0.58091       18.14015        0.58337        0.22065        0.05352
   59308.906110       0.000312       20.44426        0.65869        1.00000     0       18.56791        0.58688       18.30592        0.58979        0.26200        0.05858
   59308.906726       0.000304       20.93094        0.67379        1.00000     0       19.06027        0.60304       18.81773        0.60574        0.24253        0.05717
   59308.907340       0.000310       20.71347        0.66292        1.00000     0       18.74145        0.59236       18.56956        0.59428        0.17189        0.04767
   59308.907953       0.000304       20.95048        0.66872        1.00000     0       19.23198        0.60575       19.04334        0.60784        0.18864        0.05042
   59308.908567       0.000310       20.66146        0.65991        1.00000     0       18.85378        0.59413       18.66867        0.59619        0.18511        0.04947
   59308.909287       0.000411       20.07064        0.56615        0.99377     0       18.48365        0.51225       18.24303        0.51460        0.24062        0.04912