/*
**
**  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
   56667.418292       0.000373       16.84168        0.54210        1.00000     0
   56667.419030       0.000365       17.16417        0.55022        1.00000     0
   56667.419774       0.000379       16.60795        0.53259        1.00000     0
   56667.420532       0.000379       16.47186        0.52821        1.00000     0
   56667.421290       0.000379       16.45667        0.52786        1.00000     0
   56667.422074       0.000405       15.56947        0.50145        1.00000     0
   56667.422835       0.000356       17.68232        0.56372        1.00000     0
   56667.423555       0.000365       17.47473        0.56008        1.00000     0
   56667.424293       0.000373       16.80333        0.53726        1.00000     0
   56667.425020       0.000353       17.80771        0.57122        1.00000     0
   56667.425754       0.000382       16.53610        0.53221        1.00000     0
   56667.426501       0.000365       17.01028        0.54820        1.00000     0
   56667.427329       0.000463       17.29756        0.49188        0.99893     0
   56667.502528       0.000391       16.01459        0.51492        0.99860     0
   56667.503286       0.000367       16.97113        0.55756        1.00000     0
   56667.504024       0.000370       16.80703        0.54082        1.00000     0
   56667.504965       0.000570       16.75778        0.43769        1.00000     0