/*
**
**  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
   55995.061593       0.000318       19.77428        0.63706        1.00000     0
   55995.062566       0.000654       19.21164        0.43787        0.99641     0
   55995.387895       0.000365       18.04253        0.58868        0.98629     0
   55995.388601       0.000341       18.97765        0.61802        1.00000     0
   55995.389281       0.000339       18.78003        0.62727        1.00000     0
   55995.389944       0.000324       19.68959        0.65305        1.00000     0
   55995.390615       0.000347       18.63461        0.60469        1.00000     0
   55995.391333       0.000370       17.22401        0.56989        1.00000     0
   55995.392062       0.000359       18.10770        0.58932        0.99194     0
   55995.392771       0.000350       18.10284        0.60566        1.00000     0
   55995.393451       0.000330       19.31930        0.63957        1.00000     0
   55995.394412       0.000631       18.70458        0.45886        1.00000     0