/*
**
**  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
   57747.185029       0.000310       20.63874        0.66642        1.00000     0       18.85376        0.59413       18.54105        0.59869        0.31271        0.07371
   57747.185675       0.000336       19.07205        0.61895        1.00000     0       17.27007        0.54613       16.96560        0.55058        0.30447        0.06985
   57747.186340       0.000330       19.24324        0.62521        1.00000     0       17.62578        0.55654       17.28335        0.56154        0.34243        0.07472
   57747.186991       0.000321       19.89827        0.63873        1.00000     0       18.04800        0.57073       17.86379        0.57342        0.18421        0.05554
   57747.187636       0.000324       19.55492        0.64156        1.00000     0       17.97630        0.56704       17.49498        0.57405        0.48132        0.08938
   57747.188279       0.000318       20.26048        0.64892        1.00000     0       18.33956        0.57793       18.13677        0.58089        0.20279        0.05854
   57747.189100       0.000503       20.63655        0.52260        0.99601     0       18.70336        0.46498       18.46739        0.46769        0.23597        0.05031
   57747.299367       0.000312       20.07930        0.64260        0.99797     0       18.67994        0.58924       18.48543        0.59153        0.19451        0.05198
   57747.299992       0.000312       20.15821        0.64442        1.00000     0       18.79048        0.59038       18.55477        0.59314        0.23571        0.05717
   57747.300611       0.000307       20.49329        0.65242        1.00000     0       18.99382        0.59914       18.86668        0.60064        0.12714        0.04238
   57747.301230       0.000312       19.80926        0.63585        1.00000     0       18.53079        0.58629       18.33667        0.58858        0.19412        0.05188
   57747.302165       0.000622       19.39711        0.45083        0.99987     0       18.13476        0.41109       17.80736        0.41386        0.32739        0.04776
   57747.366670       0.000289       21.96145        0.70606        0.99330     0       20.16845        0.63778       19.94240        0.64111        0.22605        0.06525
   57747.367275       0.000315       20.35799        0.65181        1.00000     0       18.37916        0.58120       18.22466        0.58348        0.15449        0.05150
   57747.367879       0.000289       21.80791        0.70012        1.00000     0       20.03329        0.63351       19.82746        0.63654        0.20582        0.06206
   57747.368473       0.000304       20.83597        0.67245        1.00000     0       19.28919        0.60665       18.95061        0.61160        0.33858        0.07768
   57747.369112       0.000336       20.14898        0.62693        1.00000     0       18.58260        0.56650       18.32452        0.57016        0.25808        0.06452