/*
**
**  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
   59742.219919       0.000243       25.75031        0.82554        1.00000     0       24.01611        0.75681       23.73289        0.76088        0.28322        0.07855
   59742.220402       0.000240       26.10206        0.83735        1.00000     0       24.40201        0.76745       24.07127        0.77219        0.33073        0.08539
   59742.220894       0.000252       24.65438        0.79955        1.00000     0       23.09586        0.72926       22.67516        0.73530        0.42070        0.09407
   59742.221377       0.000231       26.27746        0.86781        1.00000     0       25.01658        0.79149       24.28456        0.80200        0.73202        0.12940
   59742.221840       0.000231       26.56978        0.86412        1.00000     0       25.04162        0.79189       24.56123        0.79879        0.48039        0.10483
   59742.222295       0.000223       28.36697        0.90832        1.00000     0       26.32948        0.82766       25.99674        0.83242        0.33274        0.08893
   59742.222761       0.000243       25.65066        0.82345        1.00000     0       24.01611        0.75681       23.71110        0.76119        0.30501        0.08152
   59742.223250       0.000246       25.21642        0.81028        1.00000     0       23.56859        0.74530       23.31022        0.74903        0.25836        0.07458
   59742.223901       0.000405       26.50238        0.65250        0.98654     0       24.80309        0.59980       24.49834        0.60316        0.30475        0.06355