/*
**
**  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
   55223.274203       0.000217       35.44522        1.12888        1.00000     0
   55223.274638       0.000217       33.89198        1.08769        1.00000     0
   55223.275060       0.000205       35.18552        1.13874        1.00000     0
   55223.275477       0.000211       33.87889        1.08192        1.00000     0
   55223.275896       0.000208       33.53981        1.07529        1.00000     0
   55223.276304       0.000200       35.48131        1.14228        1.00000     0
   55223.276706       0.000203       35.17122        1.12774        1.00000     0
   55223.277106       0.000197       36.05315        1.15867        1.00000     0
   55223.277514       0.000211       33.91961        1.08603        1.00000     0
   55223.277936       0.000211       33.14703        1.07841        1.00000     0
   55223.278347       0.000200       35.07649        1.13843        1.00000     0
   55223.278738       0.000191       36.97812        1.18562        1.00000     0
   55223.279134       0.000205       34.09619        1.09755        1.00000     0
   55223.279542       0.000203       34.63634        1.12452        1.00000     0
   55223.279953       0.000208       33.77623        1.09629        1.00000     0
   55223.280367       0.000205       34.46498        1.11456        1.00000     0
   55223.280775       0.000203       35.22714        1.12497        1.00000     0
   55223.281183       0.000205       33.88183        1.10046        1.00000     0
   55223.281591       0.000203       34.64886        1.12076        1.00000     0
   55223.281999       0.000205       34.45536        1.09866        1.00000     0
   55223.282415       0.000211       33.20453        1.06587        1.00000     0
   55223.282835       0.000208       33.24590        1.07844        1.00000     0
   55223.283249       0.000205       34.21465        1.09246        1.00000     0
   55223.283665       0.000211       33.10559        1.06827        1.00000     0
   55223.284073       0.000197       35.45866        1.15229        1.00000     0
   55223.284470       0.000200       34.88765        1.13627        1.00000     0
   55223.284875       0.000205       33.78482        1.09359        1.00000     0
   55223.285274       0.000194       36.72830        1.17433        1.00000     0
   55223.285682       0.000214       32.33176        1.04601        1.00000     0
   55223.286099       0.000203       34.63621        1.10413        1.00000     0
   55223.286533       0.000231       34.48141        1.04271        1.00000     0