/*
**
**  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
   54974.360521       0.000350       17.77312        0.57179        1.00000     0       16.63924        0.52487       16.41440        0.52807        0.22484        0.05805
   54974.361213       0.000341       18.15653        0.58408        1.00000     0       16.97739        0.53687       16.77757        0.53972        0.19982        0.05542
   54974.361907       0.000353       17.65367        0.56554        1.00000     0       16.47001        0.52005       16.30648        0.52238        0.16353        0.04931
   54974.362590       0.000330       18.87210        0.60439        1.00000     0       17.59066        0.55599       17.43156        0.55826        0.15910        0.05031
   54974.363259       0.000339       18.34923        0.58825        1.00000     0       17.10537        0.54119       16.95035        0.54341        0.15502        0.04902
   54974.363927       0.000330       18.71422        0.60602        1.00000     0       17.57309        0.55571       17.28670        0.55979        0.28638        0.06750
   54974.364595       0.000339       18.23573        0.59053        1.00000     0       17.12249        0.54146       16.84346        0.54544        0.27904        0.06577
   54974.365463       0.000530       18.57130        0.47402        0.99588     0       17.30221        0.43611       17.15293        0.43781        0.14928        0.03854
   54974.428843       0.000310       20.12383        0.64543        0.99837     0       18.77197        0.59333       18.58350        0.59604        0.18848        0.05683
   54974.429488       0.000336       18.42391        0.59759        1.00000     0       17.27010        0.54613       16.97029        0.55044        0.29981        0.06878
   54974.430154       0.000330       19.03920        0.60594        1.00000     0       17.76639        0.55876       17.62188        0.56083        0.14451        0.04817
   54974.430808       0.000324       19.20291        0.61294        1.00000     0       17.88689        0.56563       17.77249        0.56728        0.11440        0.04324
   54974.431476       0.000344       18.21482        0.58545        1.00000     0       16.91889        0.53369       16.70355        0.53678        0.21534        0.05755
   54974.432150       0.000330       18.80343        0.60390        1.00000     0       17.59066        0.55599       17.39798        0.55876        0.19267        0.05562
   54974.432906       0.000425       18.09574        0.52203        1.00000     0       16.73532        0.47757       16.61080        0.47919        0.12452        0.03938