/*
**
**  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
   55627.143234       0.000266       12.56239        0.91132        0.95652     0
   55627.143749       0.000249       13.27271        0.96690        0.97674     0
   55627.144287       0.000289       11.60102        0.84163        0.95000     0
   55627.144857       0.000275       11.89512        0.86070        0.96842     0
   55627.145415       0.000284       11.58151        0.83763        0.96939     0
   55627.145939       0.000240       13.51375        0.97296        1.00000     0
   55627.146413       0.000234       14.05443        1.00217        0.98765     0
   55627.146885       0.000237       13.54756        0.98877        0.98780     0
   55627.147394       0.000272       12.35569        0.88327        0.96809     0
   55627.147935       0.000269       12.03102        0.86500        0.98925     0
   55627.148445       0.000240       13.22240        0.96953        0.98795     0
   55627.148908       0.000223       14.64608        1.04742        1.00000     0
   55627.149388       0.000258       12.58857        0.90199        1.00000     0
   55627.149889       0.000243       13.40769        0.97595        0.97619     0
   55627.150369       0.000237       13.84102        0.99500        0.97561     0
   55627.150838       0.000231       13.84754        1.00535        0.98750     0
   55627.151309       0.000240       13.48526        0.97423        0.98795     0
   55627.151775       0.000226       14.40389        1.03939        1.00000     0
   55627.152238       0.000237       13.65328        0.98438        0.98780     0
   55627.152716       0.000240       13.33737        0.97097        0.98795     0
   55627.153190       0.000234       13.43927        0.96910        1.00000     0
   55627.153798       0.000373       12.78754        0.76041        0.97674     0