/*
**
**  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
   54483.210636       0.000211       34.56092        1.11207        1.00000     0
   54483.211032       0.000185       37.95663        1.21819        1.00000     0
   54483.211391       0.000174       39.99310        1.28475        1.00000     0
   54483.211747       0.000182       38.38169        1.23144        1.00000     0
   54483.212111       0.000182       38.01453        1.23035        1.00000     0
   54483.212490       0.000197       35.55748        1.15219        1.00000     0
   54483.212878       0.000191       36.47241        1.17529        1.00000     0
   54483.213254       0.000185       37.85087        1.21127        1.00000     0
   54483.213631       0.000191       36.15439        1.17836        1.00000     0
   54483.214001       0.000179       38.73472        1.25394        1.00000     0
   54483.214371       0.000191       36.75988        1.17241        1.00000     0
   54483.214747       0.000185       37.77275        1.21650        1.00000     0
   54483.215112       0.000179       38.99749        1.24535        1.00000     0
   54483.215471       0.000179       38.78448        1.24112        1.00000     0
   54483.215835       0.000185       37.34370        1.20399        1.00000     0
   54483.216206       0.000185       37.58925        1.20347        1.00000     0
   54483.216585       0.000194       35.94796        1.15891        1.00000     0
   54483.216955       0.000177       39.49175        1.26502        1.00000     0
   54483.217314       0.000182       38.43501        1.23527        1.00000     0
   54483.217679       0.000182       38.33444        1.23181        1.00000     0
   54483.218037       0.000177       39.64904        1.27138        1.00000     0
   54483.218393       0.000179       39.06446        1.24470        1.00000     0
   54483.218749       0.000177       39.04686        1.26641        1.00000     0
   54483.219096       0.000171       40.56487        1.30951        1.00000     0
   54483.219452       0.000185       38.26361        1.20903        1.00000     0
   54483.219823       0.000185       37.52597        1.20054        1.00000     0
   54483.220187       0.000179       38.70814        1.24285        1.00000     0
   54483.220595       0.000229       37.72759        1.08929        1.00000     0