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Perseids Results(2012)

In 2012, the activit profile was same as annual yeras (such as 2010). The peak time was however ealier than annual year.

Activity Level (using worldwide data)

2012Perseids結果

Observed Peaks

Time(UT) Solar Long. Activity Level
Aug.12 09h 139°.899 2.00 ± 0.35

Estimated Compornents of Perseid activity

Comp.No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
PER12C01 Aug.12 09h30m 139°.899 1.5 -13.0/+18.0

Parameter

  • Radiant : α = 46°.2, δ = +57°.4
  • Radian Elevation : 20° < h
  • Using data within ± 0.50 σ in all observed data.

Reference

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