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Result of ηAquarids(2007)

Although 2007 η-Aquarids was higher activity than 2006, it did not reach to activity level in 2004 and 2005. The peak time was around Solar Longitude 45°.9. It was later than visual peak.

Activity Level (using worldwide data)

Graph of η-Aquarids

Observed Peaks

Time(UT) Solar Long. Activity Level
May 6th 22h
May 8th 10h
45°.917
47°.369
1.40 ± 0.40
1.44 ± 0.36

Estimated Compornents of ηAquarids activity

Trail-No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
EAQ07C01
EAQ07C02
May 5th 23h30m
May 9th 12h30m
45°.957
48°.416
1.0
0.5
-36.0 / +54.0
-12.0 / +24.0

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