/*
**
**  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
   55547.496849       0.000237       11.95835        0.86811        1.00000     0
   55547.497300       0.000214       11.60545        0.83402        0.97297     0
   55547.497833       0.000318       10.82923        0.78799        0.99091     0
   55547.498478       0.000327       11.49088        0.83791        0.97345     0
   55547.499120       0.000315       11.56563        0.84073        0.96330     0
   55547.499748       0.000312       11.43066        0.83221        0.98148     0
   55547.500388       0.000327       11.54377        0.83730        0.95575     0
   55547.501076       0.000362       10.12878        0.72692        1.00000     0
   55547.501814       0.000376       10.15347        0.73988        0.96154     0
   55547.502523       0.000333       11.11522        0.80981        0.98261     0
   55547.503241       0.000385        9.92720        0.72183        0.96241     0
   55547.503970       0.000344       10.65169        0.78574        0.97479     0
   55547.504658       0.000344       10.77392        0.78977        0.98319     0
   55547.505367       0.000365       10.45276        0.75996        0.96825     0
   55547.506068       0.000336       11.40236        0.82831        0.96552     0
   55547.506704       0.000301       12.34696        0.89973        0.99038     0
   55547.507367       0.000362       10.59697        0.77332        0.96000     0
   55547.508093       0.000365       10.71817        0.77860        0.94444     0
   55547.508842       0.000385        9.96202        0.72178        0.96992     0
   55547.509800       0.000573       11.28018        0.62943        0.96970     0