/*
**
**  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
   53493.224318       0.000258       23.81882        0.77487        1.00000     0       22.62185        0.71358       22.14755        0.72040        0.47430        0.09890
   53493.224821       0.000246       24.85472        0.80200        1.00000     0       23.68641        0.74716       23.31934        0.75245        0.36707        0.08903
   53493.225316       0.000249       24.84874        0.79585        1.00000     0       23.38769        0.73811       23.15294        0.74150        0.23475        0.07078
   53493.225817       0.000252       24.40688        0.77868        1.00000     0       23.04979        0.72853       22.90211        0.73067        0.14767        0.05581
   53493.226314       0.000246       24.90790        0.79654        1.00000     0       23.54500        0.74493       23.37226        0.74743        0.17274        0.06107
   53493.226806       0.000246       24.93294        0.80522        1.00000     0       23.82782        0.74939       23.39597        0.75559        0.43185        0.09656
   53493.227396       0.000344       25.39392        0.68111        0.99911     0       24.04451        0.63651       23.82840        0.63912        0.21612        0.05776