/*
**
**  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
   55631.342445       0.000119       10.77361        0.76554        1.00000     0        9.87009        0.69446        9.79325        0.69587        0.07685        0.04437
   55631.343090       0.000527       11.98186        0.38296        1.00000     0       11.00734        0.34808       10.91944        0.34898        0.08790        0.02496
   55631.344141       0.000524       11.87982        0.38203        0.99448     0       11.14077        0.35213       11.00441        0.35388        0.13636        0.03521
   55631.345159       0.000495       12.61343        0.40310        1.00000     0       11.73885        0.37084       11.64315        0.37208        0.09569        0.03026
   55631.346163       0.000509       12.30189        0.39073        1.00000     0       11.43950        0.36085       11.38372        0.36157        0.05578        0.02277
   55631.347205       0.000532       11.68329        0.37666        1.00000     0       10.89858        0.34447       10.74340        0.34628        0.15518        0.03538
   55631.348270       0.000532       11.92382        0.38237        1.00000     0       10.92036        0.34482       10.79361        0.34610        0.12675        0.02980
   55631.349337       0.000535       11.64716        0.37182        1.00000     0       10.87216        0.34312       10.78387        0.34426        0.08829        0.02792
   55631.350379       0.000506       12.28427        0.39389        1.00000     0       11.44763        0.36201       11.33563        0.36345        0.11200        0.03233
   55631.351380       0.000495       12.54322        0.40424        0.99415     0       11.77254        0.37247       11.61882        0.37444        0.15373        0.03843
   55631.351996       0.000122       10.22446        0.73368        1.00000     0        9.58739        0.67624        9.47073        0.67959        0.11667        0.06736
   55631.352630       0.000512       12.18674        0.38934        1.00000     0       11.39751        0.35917       11.28677        0.36059        0.11074        0.03197
   55631.353663       0.000521       11.86898        0.38187        1.00000     0       11.12964        0.35195       10.99353        0.35370        0.13611        0.03514
   55631.354844       0.000660       11.40852        0.33454        0.99561     0       10.74035        0.30787       10.56766        0.30989        0.17269        0.03525