/*
**
**  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
   59673.921665       0.000373       16.60705        0.53328        1.00000     0
   59673.922400       0.000362       17.13052        0.55111        1.00000     0
   59673.923103       0.000341       18.24647        0.58423        1.00000     0
   59673.923795       0.000350       17.65349        0.56357        1.00000     0
   59673.924492       0.000347       17.78998        0.57277        1.00000     0
   59673.925204       0.000365       17.20927        0.54939        0.99206     0
   59673.925922       0.000353       17.63358        0.56402        1.00000     0
   59673.926642       0.000367       16.71287        0.53838        1.00000     0
   59673.927357       0.000347       17.77583        0.57173        1.00000     0
   59673.928063       0.000359       17.28677        0.55453        1.00000     0
   59673.928777       0.000356       17.48036        0.55504        1.00000     0
   59673.929475       0.000341       18.15508        0.58041        1.00000     0
   59673.930187       0.000370       16.71225        0.53631        1.00000     0
   59673.931243       0.000686       17.52340        0.40461        1.00000     0