/*
**
**  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
   57551.281534       0.000191       32.96152        1.06305        1.00000     0
   57551.281922       0.000197       32.84325        1.04335        1.00000     0
   57551.282309       0.000191       33.49240        1.06352        1.00000     0
   57551.282685       0.000185       34.06518        1.09619        1.00000     0
   57551.283053       0.000182       34.99411        1.11022        1.00000     0
   57551.283415       0.000179       35.19247        1.12878        1.00000     0
   57551.283794       0.000200       32.37914        1.03114        1.00000     0
   57551.284190       0.000197       32.14151        1.02916        1.00000     0
   57551.284578       0.000191       33.69265        1.06991        1.00000     0
   57551.284957       0.000188       33.93683        1.09230        1.00000     0
   57551.285342       0.000197       32.82624        1.04662        1.00000     0
   57551.285718       0.000179       35.89705        1.13842        1.00000     0
   57551.286094       0.000197       32.69510        1.03788        1.00000     0
   57551.286470       0.000179       35.74431        1.14146        1.00000     0
   57551.286838       0.000188       34.20668        1.09352        1.00000     0
   57551.287214       0.000188       33.92525        1.08732        1.00000     0
   57551.287596       0.000194       33.43313        1.06562        1.00000     0
   57551.287975       0.000185       34.65305        1.10244        1.00000     0
   57551.288348       0.000188       34.09193        1.08936        1.00000     0
   57551.288730       0.000194       32.87369        1.05679        1.00000     0
   57551.289242       0.000318       32.78260        0.82490        0.99167     0