/*
**
**  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
   55235.211896       0.000223       28.52096        0.91023        1.00000     0
   55235.212368       0.000249       30.10469        0.89220        0.99136     0
   55235.251193       0.000231       27.40808        0.87981        0.99754     0
   55235.251650       0.000226       28.02664        0.89482        1.00000     0
   55235.252087       0.000211       30.13721        0.96248        1.00000     0
   55235.252513       0.000214       29.40715        0.94348        1.00000     0
   55235.253106       0.000379       27.97800        0.69307        0.99792     0
   55235.318560       0.000226       28.44114        0.91394        0.99177     0
   55235.319011       0.000226       28.14452        0.90084        1.00000     0
   55235.319448       0.000211       30.47752        0.97731        1.00000     0
   55235.319874       0.000214       30.22900        0.96237        1.00000     0
   55235.320470       0.000382       29.94941        0.71943        0.99271     0
   55235.385227       0.000231       27.44092        0.88198        0.99594     0
   55235.385681       0.000223       28.92945        0.92527        1.00000     0
   55235.386141       0.000237       27.09701        0.86019        1.00000     0
   55235.386621       0.000243       26.05833        0.83305        1.00000     0
   55235.387191       0.000327       26.05171        0.72008        0.99873     0
   55235.451341       0.000252       25.68783        0.81776        0.99743     0
   55235.451841       0.000249       25.71458        0.82528        1.00000     0
   55235.452342       0.000252       25.42141        0.80985        1.00000     0
   55235.452834       0.000240       27.41904        0.86942        1.00000     0
   55235.453583       0.000509       25.05370        0.56594        1.00000     0