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δ-Aquarids Results(2008)

In 2008, main peak was around λo124°.959 with more than 60 hours of FWHM. After the man peak, the decrease of activity was slowly around λo129°.26.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Jul. 27 13h 124°.76 6.24 ± 1.51
Jul. 31 13h 128°.58 3.30 ± 0.96

Estimated Compornents of Quadrantid activity

Trail-No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
C08T1 Jul. 27 18h30m 124°.96 4.0 -66.0/+60.0
C08T2 Aug. 1 06h30m 129°.26 1.5 -30.0/+60.0

Parameter

  • Radiant : α = 339°, δ = -16°
  • Radian Elevation : 15° < h < 80°
  • Using data within ± 0.80 σ in all observed data.

Reference

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