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δ-Aquarids Results(2010)

In 2010, the activity profile was same as annual year. The beginning of activity was around λo120°(23rd Jul). The main and sub peak were λo123°.5 and 126°.4. Since λo136°, the increase of activity level was seen again. This means the beginning of Perseids activity.

Activity Level (using worldwide data)

Aquarids

Observed Peaks

Time(UT) Solar Long. Activity Level
Jul. 26 19h 123°.559 4.24 ± 0.66
Jul. 29 16h 126°.305 4.98 ± 0.75

Estimated Compornents of Quadrantid activity

Trail-No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
C10T1 Jul. 26 14h30m 123°.36 2.0 -42.0/+24.0
C10T2 Jul. 29 18h30m 126°.38 4.0 -36.0/+36.0
C10T3 Aug. 1 18h30m 129°.25 1.5 -24.0/+60.0

Parameter

  • Radiant : α = 339°, δ = -16°
  • Radian Elevation : 15° < h < 70°
  • 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