/*
**
**  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
   54924.981785       0.000281       22.27086        0.70729        1.00000     0
   54924.982341       0.000275       22.40104        0.72232        1.00000     0
   54924.982899       0.000284       21.89234        0.70017        1.00000     0
   54924.983455       0.000272       22.68663        0.72781        1.00000     0
   54924.983996       0.000269       23.20297        0.73938        1.00000     0
   54924.984551       0.000286       21.67879        0.69175        1.00000     0
   54924.985124       0.000286       21.54017        0.69103        1.00000     0
   54924.985697       0.000286       21.63180        0.69295        1.00000     0
   54924.986256       0.000272       22.60131        0.72954        1.00000     0
   54924.986820       0.000292       21.16002        0.67617        1.00000     0
   54924.987390       0.000278       22.29032        0.71484        1.00000     0
   54924.987963       0.000295       21.20830        0.67762        1.00000     0
   54924.988536       0.000278       22.59061        0.71664        1.00000     0
   54924.989091       0.000278       22.21868        0.71558        1.00000     0
   54924.989647       0.000278       22.46267        0.71753        1.00000     0
   54924.990200       0.000275       22.84412        0.72464        1.00000     0
   54924.990744       0.000269       23.00580        0.73735        1.00000     0
   54924.991288       0.000275       22.34090        0.72151        1.00000     0
   54924.991849       0.000286       21.83327        0.69793        1.00000     0
   54924.992410       0.000275       22.22765        0.72224        1.00000     0
   54924.992969       0.000284       21.83153        0.69971        1.00000     0
   54924.993516       0.000263       23.54486        0.75513        1.00000     0
   54924.994088       0.000310       21.27312        0.66366        1.00000     0