/*
**
**  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
   55570.519605       0.000119       11.88104        0.85520        1.00000     0
   55570.520386       0.000663       12.07121        0.38846        0.83405     0
   55570.521589       0.000541       12.49292        0.40045        1.00000     0
   55570.522683       0.000553       12.16631        0.39166        1.00000     0
   55570.523771       0.000535       12.64598        0.40753        0.99459     0
   55570.524431       0.000124       10.87627        0.77967        1.00000     0
   55570.524677       0.000122       11.18954        0.79379        1.00000     0
   55570.524920       0.000122       11.16400        0.80396        1.00000     0
   55570.525507       0.000466       11.58489        0.41543        1.00000     0
   55570.526329       0.000356       11.49278        0.47877        0.99187     0
   55570.527379       0.000694       12.34886        0.39666        0.78750     0
   55570.528629       0.000556       12.08324        0.38959        1.00000     0
   55570.529309       0.000124       11.22550        0.79009        1.00000     0
   55570.529552       0.000119       11.70233        0.82194        1.00000     0
   55570.529842       0.000171       11.44715        0.68840        1.00000     0
   55570.530137       0.000124       10.80381        0.78210        1.00000     0
   55570.530811       0.000550       11.51923        0.38457        1.00000     0
   55570.531480       0.000119       11.37188        0.81786        1.00000     0
   55570.532168       0.000570       11.94775        0.38138        0.99492     0
   55570.532889       0.000150       11.55660        0.73045        1.00000     0
   55570.533279       0.000240       11.59401        0.57975        1.00000     0
   55570.533644       0.000124       10.79786        0.78777        1.00000     0
   55570.534318       0.000550       12.28474        0.39331        1.00000     0
   55570.535429       0.000561       12.01893        0.38596        1.00000     0
   55570.536549       0.000558       12.00982        0.38748        1.00000     0
   55570.537290       0.000182       11.66806        0.66699        1.00000     0