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Perseids Results(2007)

In 2007, although observed peaks were around λo139°.8 and 140°.2, 2007 Perseid activity came from one compornent because they had large error bars and profile was unstable. In this analysis, the peak time was later than annual year.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Aug.13 01h 139°.853 1.32 ± 0.44
Aug.13 11h 140°.253 1.31 ± 0.17

Estimated Compornents of Perseid activity

Comp.No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
PER07C01 Aug.13 11h00m 140°.253 1.3 -20.0/+15.0

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