/*
**
**  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
   55655.021972       0.000440       14.70412        0.47611        1.00000     0
   55655.022814       0.000402       16.14809        0.52762        1.00000     0
   55655.023665       0.000448       14.40974        0.46770        1.00000     0
   55655.024550       0.000437       14.69814        0.48048        1.00000     0
   55655.025413       0.000425       14.99580        0.49166        1.00000     0
   55655.026261       0.000422       15.33220        0.49449        1.00000     0
   55655.027114       0.000431       14.78539        0.48360        1.00000     0
   55655.027973       0.000428       15.03033        0.48706        1.00000     0
   55655.028839       0.000437       14.79151        0.47996        1.00000     0
   55655.029710       0.000434       14.75477        0.48299        1.00000     0
   55655.030581       0.000437       14.65629        0.47808        1.00000     0
   55655.031457       0.000440       14.74216        0.47307        1.00000     0
   55655.032337       0.000440       14.81067        0.47550        1.00000     0
   55655.033182       0.000405       15.87798        0.51841        1.00000     0
   55655.034012       0.000425       15.11539        0.48889        1.00000     0
   55655.034924       0.000486       14.99874        0.45357        1.00000     0