/*
**
**  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
   58172.321722       0.000275       27.90770        0.90900        1.00000     0       21.06665        0.66652       20.66129        0.67236        0.40536        0.08846
   58172.322278       0.000281       26.61065        0.87370        1.00000     0       20.75621        0.65473       20.18906        0.66287        0.56715        0.10355
   58172.322816       0.000258       28.21294        0.92728        1.00000     0       22.64444        0.71394       22.00571        0.72310        0.63873        0.11472
   58172.323346       0.000272       26.78616        0.87263        1.00000     0       21.46126        0.67630       20.97356        0.68330        0.48770        0.09754
   58172.323872       0.000255       28.66090        0.92812        1.00000     0       22.78794        0.72026       22.41285        0.72566        0.37509        0.08841
   58172.324379       0.000252       29.58122        0.95350        1.00000     0       23.25711        0.73180       22.87771        0.73725        0.37940        0.08943
   58172.324902       0.000272       26.74724        0.85936        1.00000     0       21.37601        0.67496       21.12241        0.67861        0.25361        0.07034
   58172.325438       0.000263       27.34655        0.88871        1.00000     0       21.99266        0.69582       21.58963        0.70163        0.40303        0.09012
   58172.325970       0.000269       27.00533        0.86934        1.00000     0       21.69203        0.68357       21.37654        0.68811        0.31549        0.07887
   58172.326503       0.000263       27.71885        0.89659        1.00000     0       22.19079        0.69894       21.78777        0.70473        0.40303        0.09012
   58172.327029       0.000263       27.11942        0.88325        1.00000     0       22.01468        0.69617       21.57135        0.70255        0.44333        0.09452
   58172.327556       0.000263       27.56574        0.89146        1.00000     0       22.25684        0.69998       21.83366        0.70605        0.42318        0.09234
   58172.328080       0.000260       27.71898        0.90602        1.00000     0       22.50414        0.70776       21.91325        0.71622        0.59088        0.10972
   58172.328603       0.000263       27.33551        0.88209        1.00000     0       22.23482        0.69964       21.85195        0.70513        0.38288        0.08784
   58172.329127       0.000260       27.59482        0.90036        1.00000     0       22.23702        0.70355       21.76839        0.71030        0.46863        0.09772
   58172.329648       0.000260       27.82559        0.89671        1.00000     0       22.48187        0.70741       22.11512        0.71267        0.36675        0.08644
   58172.330169       0.000260       27.38081        0.88697        1.00000     0       22.25928        0.70390       21.89253        0.70919        0.36675        0.08644
   58172.330692       0.000263       27.19979        0.88255        1.00000     0       22.05870        0.69686       21.65568        0.70266        0.40303        0.09012
   58172.331233       0.000278       25.85221        0.84437        1.00000     0       21.07676        0.66320       20.54191        0.67086        0.53485        0.10108
   58172.332023       0.000512       27.03191        0.63300        1.00000     0       21.87823        0.49762       21.44310        0.50213        0.43513        0.06714