/*
**
**  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)
**   RawRate                  - Raw source count rate (cts/s)
**   RawError                 - 1 sigma error in the raw count rate (cts/s)
**   NetRate                  - Background subtracted count rate (cts/s)
**   NetError                 - 1 sigma error in the background subtracted count rate (cts/s)
**   BackRate                 - Background count rate (cts/s)
**   BackError                - 1 sigma error in the background count rate (cts/s)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode        RawRate       RawError        NetRate       NetError       BackRate      BackError
   57070.359558       0.000171       37.49552        1.18753        1.00000     0       34.49786        1.08229       34.26944        1.08530        0.22841        0.08076
   57070.359902       0.000174       36.67991        1.16461        1.00000     0       33.75595        1.06163       33.53135        1.06460        0.22460        0.07941
   57070.360246       0.000171       37.17677        1.17936        1.00000     0       34.22622        1.07802       34.05491        1.08029        0.17131        0.06994
   57070.360585       0.000168       37.69456        1.19617        1.00000     0       34.95449        1.09878       34.72214        1.10185        0.23235        0.08215
   57070.360918       0.000165       37.85210        1.20954        1.00000     0       35.25141        1.11308       34.95588        1.11700        0.29553        0.09346
   57070.361276       0.000194       35.75341        1.09235        0.98805     0       33.34852        1.00458       33.01772        1.00876        0.33080        0.09175