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Result of ηAquarids(2012)

2012 η-Aquarids showd higher activity than annual year. The maximum activity level was 2.67. A lot of long echoes were also observed. The beginning of activity was early which was on 3rd.
On the other hand, the activity around λo50° was observed such as annual year.

Activity Level (using worldwide data)

Graph of η-Aquarids

Observed Peaks

Time(UT) Solar Long. Activity Level
May 5th 22h 45°.643 2.76 ± 0.55

Estimated Compornents of ηAquarids activity

Trail-No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
EAQ12C01 May 3rd 00h30m 42°.818 0.6 -12.0/+6.0
EAQ12C02 May 6th 00h30m 45°.724 2.0 -26.0/+40.0
EAQ12C03 May 10th 23h30m 50°.518 0.5 -24.0/+36.0

Parameter

  • Radiant : α = 338°, δ = -1°
  • Radiant Drift: Δα = 1°, Δδ = +0°.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