/*
**
**  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
   56737.180127       0.000295       21.54686        0.68839        1.00000     0
   56737.180711       0.000289       21.81021        0.69838        1.00000     0
   56737.181301       0.000301       20.94538        0.67040        1.00000     0
   56737.181883       0.000281       22.67723        0.72278        1.00000     0
   56737.182459       0.000295       21.71247        0.69331        1.00000     0
   56737.183037       0.000284       22.45740        0.71859        1.00000     0
   56737.183622       0.000301       20.94628        0.67726        1.00000     0
   56737.184218       0.000295       21.60436        0.69169        1.00000     0
   56737.184785       0.000272       23.21885        0.74679        1.00000     0
   56737.185344       0.000286       22.31171        0.71000        1.00000     0
   56737.185931       0.000301       20.95116        0.67446        1.00000     0
   56737.186527       0.000295       21.67335        0.69267        1.00000     0
   56737.187123       0.000301       21.02320        0.67488        1.00000     0
   56737.187699       0.000275       23.61387        0.75294        1.00000     0
   56737.188275       0.000301       21.24548        0.68207        1.00000     0
   56737.188865       0.000289       21.75886        0.69840        1.00000     0
   56737.189695       0.000541       21.44179        0.51008        1.00000     0