/*
**
**  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
   57509.943350       0.000185       34.34467        1.10607        1.00000     0
   57509.943718       0.000182       35.81511        1.14018        1.00000     0
   57509.944088       0.000188       34.24883        1.10016        1.00000     0
   57509.944464       0.000188       34.35342        1.09216        1.00000     0
   57509.944832       0.000179       35.99398        1.14848        1.00000     0
   57509.945190       0.000179       35.33341        1.14388        1.00000     0
   57509.945555       0.000185       34.84027        1.11397        1.00000     0
   57509.945925       0.000185       34.78300        1.11415        1.00000     0
   57509.946299       0.000188       33.95159        1.08685        1.00000     0
   57509.946675       0.000188       34.08366        1.08799        1.00000     0
   57509.947045       0.000182       35.36778        1.12289        1.00000     0
   57509.947430       0.000203       31.60855        1.01560        1.00000     0
   57509.947818       0.000185       34.60423        1.11041        1.00000     0
   57509.948185       0.000182       35.03362        1.12327        1.00000     0
   57509.948564       0.000197       33.02971        1.05152        1.00000     0
   57509.948946       0.000185       34.48086        1.11134        1.00000     0
   57509.949322       0.000191       33.45036        1.07420        1.00000     0
   57509.949716       0.000203       31.72642        1.01570        1.00000     0
   57509.950104       0.000185       34.36317        1.10666        1.00000     0
   57509.950462       0.000174       36.65433        1.18045        1.00000     0
   57509.950824       0.000188       34.33720        1.09562        1.00000     0
   57509.951189       0.000177       35.98103        1.16089        1.00000     0
   57509.951550       0.000185       34.59966        1.10939        1.00000     0
   57509.951918       0.000182       35.04750        1.12549        1.00000     0
   57509.952282       0.000182       35.03152        1.12231        1.00000     0
   57509.952644       0.000179       35.74947        1.14477        1.00000     0
   57509.953014       0.000191       33.82423        1.07841        1.00000     0
   57509.953402       0.000197       32.73664        1.04860        1.00000     0
   57509.953874       0.000275       33.33207        0.89344        1.00000     0