/*
**
**  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
   55698.176780       0.000425       14.63584        0.47382        1.00000     0
   55698.177639       0.000434       14.44900        0.46673        0.99333     0
   55698.178484       0.000411       15.12433        0.48992        1.00000     0
   55698.179314       0.000420       14.91300        0.47893        1.00000     0
   55698.180162       0.000428       14.45316        0.46683        1.00000     0
   55698.181019       0.000428       14.50940        0.47078        1.00000     0
   55698.181867       0.000420       14.88510        0.47989        0.99310     0
   55698.182711       0.000425       14.68301        0.47469        1.00000     0
   55698.183591       0.000454       13.83241        0.44667        0.98725     0
   55698.184476       0.000431       14.44287        0.46489        1.00000     0
   55698.185350       0.000443       14.01216        0.45560        0.99346     0
   55698.186227       0.000434       14.40797        0.46358        1.00000     0
   55698.187084       0.000422       14.71393        0.47388        1.00000     0
   55698.188177       0.000671       14.43205        0.37381        1.00000     0