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Result of ηAquarids(2015)

Although activity profile was simiar as 2014, two interesting activity were shown. One is the peak time was much earier than annual year. It was around λo43°.8. Another was some data were higher than 2014.

Activity Level (using worldwide data)

Graph of η-Aquarids

Observed Peaks

Time(UT) Solar Long. Activity Level
May 4th 02h 43°.121 2.02 ± 1.19

Estimated Compornents of ηAquarids activity

Trail-No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
EAQ15C01 May 4th 18h30m 43°.767 1.5 -26.0 / +40.0
EAQ15C02 May 10th 23h30m 49°.774 0.6 -18.0 / +24.0

Parameter

  • Radiant : α = 338°, δ = -1°
  • Radiant Drift: Δα = 1°, Δδ = +0°.4
  • Radian Elevation : 15° < 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