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Perseids Results(2003)

In 2003, the peak time was earlier than annual years. The activity level was also same as annual years. Some activity around λo140°.5-141°.0 as same as 2002. In 2003, however, it has possibility that they were a part of main peak compornet or error data.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Aug.12 23h 139°.787 2.01 ± 0.35

Estimated Compornents of Perseid activity

Comp.No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
PER03C01 Aug.12 23h30m 139°.787 1.5 -6.0/+8.0

Parameter

  • Radiant : α = 46°.2, δ = +57°.4
  • Radian Elevation : 20° < h
  • Using data within ± 0.75 σ in all observed data.

Reference

  • Structure of meteor activity is estimated by "Lorentz profile".
  • Observed data provided by RMOJ and RMOB