/*
**
**  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
   56671.236514       0.000385       16.65856        0.53925        1.00000     0
   56671.237301       0.000402       16.09611        0.51653        1.00000     0
   56671.238100       0.000396       16.04625        0.51894        1.00000     0
   56671.238901       0.000405       15.77940        0.50772        1.00000     0
   56671.239703       0.000396       16.18224        0.52414        1.00000     0
   56671.240481       0.000382       16.87459        0.54356        1.00000     0
   56671.241271       0.000408       16.93904        0.52575        0.99714     0
   56671.305646       0.000379       16.68956        0.53606        0.99262     0
   56671.306421       0.000396       15.94743        0.51681        1.00000     0
   56671.307203       0.000385       16.41183        0.53155        0.99248     0
   56671.307972       0.000385       16.14203        0.52708        1.00000     0
   56671.308725       0.000367       17.26319        0.55061        1.00000     0
   56671.309483       0.000391       16.10893        0.51688        1.00000     0
   56671.310493       0.000619       16.02323        0.41502        1.00000     0