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Result of ηAquarids(2011)

The activity level that had 1.5 was same as annual year. The high activity level was kept after peak time. The peak time was later than official time by International Meteor Organization.

Activity Level (using worldwide data)

Graph of η-Aquarids

Observed Peaks

Time(UT) Solar Long. Activity Level
May 6th 21h 45°.857 2.35 ± 0.09
May 7th 22h 46°.865 2.35 ± 0.29

Estimated Compornents of ηAquarids activity

Trail-No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
EAQ11C01 May 7th 00h30m 45°.978 1.3 -36.0 / +30.0
EAQ11C02 May 10th 02h30m 48°.961 0.5 -30.0 / +90.0

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