/*
**
**  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
   54844.737804       0.000188       36.02556        1.15503        1.00000     0
   54844.738188       0.000197       35.12969        1.12488        1.00000     0
   54844.738582       0.000197       35.89624        1.14869        1.00000     0
   54844.738975       0.000197       36.07909        1.15896        1.00000     0
   54844.739366       0.000194       35.81772        1.15618        1.00000     0
   54844.739745       0.000185       37.56794        1.20343        1.00000     0
   54844.740118       0.000188       37.03966        1.18374        1.00000     0
   54844.740492       0.000185       37.71362        1.19828        1.00000     0
   54844.740868       0.000191       36.28722        1.16760        1.00000     0
   54844.741253       0.000194       36.27090        1.16085        1.00000     0
   54844.741649       0.000203       34.50269        1.10561        1.00000     0
   54844.742054       0.000203       34.76049        1.10409        1.00000     0
   54844.742451       0.000194       35.82514        1.15365        1.00000     0
   54844.742838       0.000194       36.09431        1.15085        1.00000     0
   54844.743229       0.000197       35.37922        1.13455        1.00000     0
   54844.743622       0.000197       35.31788        1.13405        1.00000     0
   54844.744004       0.000185       37.62623        1.20252        1.00000     0
   54844.744395       0.000205       33.90429        1.09739        1.00000     0
   54844.744794       0.000194       36.01639        1.15773        1.00000     0
   54844.745179       0.000191       36.52535        1.16732        1.00000     0
   54844.745567       0.000197       35.32561        1.13937        1.00000     0
   54844.746143       0.000379       36.78205        0.84214        0.99981     0