/*
**
**  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
   55664.805905       0.000266       25.10419        0.80975        1.00000     0
   55664.806438       0.000266       25.31862        0.81701        1.00000     0
   55664.806956       0.000252       26.21415        0.84683        1.00000     0
   55664.807468       0.000260       26.60013        0.84735        0.97775     0
   55664.808009       0.000281       24.00994        0.77179        0.97939     0
   55664.808553       0.000263       25.06728        0.80515        1.00000     0
   55664.809082       0.000266       24.81676        0.79565        1.00000     0
   55664.809615       0.000266       24.88080        0.80454        1.00000     0
   55664.810133       0.000252       26.66640        0.85048        1.00000     0
   55664.810795       0.000411       25.27803        0.81815        0.63386     0
   55664.811470       0.000263       24.95211        0.80605        1.00000     0
   55664.811988       0.000255       26.20576        0.84682        1.00000     0
   55664.812511       0.000269       24.56262        0.79861        1.00000     0
   55664.813055       0.000275       24.27505        0.78257        1.00000     0
   55664.813579       0.000249       26.78171        0.85353        1.00000     0
   55664.814100       0.000272       24.46455        0.79159        1.00000     0
   55664.814632       0.000260       25.05120        0.81442        1.00000     0
   55664.815413       0.000521       24.74989        0.56840        1.00000     0