/*
**
**  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)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode
   55670.215585       0.000240       26.19096        0.83895        1.00000     0
   55670.216063       0.000237       26.46809        0.85430        1.00000     0
   55670.216543       0.000243       26.12085        0.83779        1.00000     0
   55670.217044       0.000258       24.42704        0.77975        1.00000     0
   55670.217547       0.000246       26.07597        0.83881        1.00000     0
   55670.218039       0.000246       26.15299        0.83725        1.00000     0
   55670.218531       0.000246       26.02724        0.83743        1.00000     0
   55670.219011       0.000234       27.13108        0.87513        1.00000     0
   55670.219492       0.000246       26.30655        0.83713        1.00000     0
   55670.219978       0.000240       26.60161        0.85820        1.00000     0
   55670.220475       0.000258       24.67920        0.79578        1.00000     0
   55670.220973       0.000240       26.34626        0.84641        1.00000     0
   55670.221451       0.000237       26.95389        0.86255        1.00000     0
   55670.221931       0.000243       25.62389        0.82890        1.00000     0
   55670.222420       0.000246       26.10711        0.83051        1.00000     0
   55670.222906       0.000240       26.42963        0.84905        1.00000     0
   55670.223386       0.000240       26.54860        0.85118        1.00000     0
   55670.223878       0.000252       25.13748        0.81614        1.00000     0
   55670.224379       0.000249       25.48941        0.81069        1.00000     0
   55670.224874       0.000246       25.83005        0.82612        1.00000     0
   55670.225354       0.000234       27.02769        0.86051        1.00000     0
   55670.225843       0.000255       24.81649        0.79420        1.00000     0
   55670.226355       0.000258       24.48704        0.78919        1.00000     0
   55670.226867       0.000255       24.96442        0.79723        1.00000     0
   55670.227374       0.000252       25.18925        0.80705        1.00000     0
   55670.227871       0.000246       25.68829        0.82474        1.00000     0
   55670.228375       0.000258       24.69550        0.79083        1.00000     0
   55670.228898       0.000266       25.54740        0.78888        1.00000     0