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Quadrantids Results(2002)

The main peak was seen around 283°.3. The activity level was the highest in several years. This activity was seen from 282°.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Jan. 3 21h 283°.310 9.24 ± 0.40

Estimated Compornents of Quadrantid activity

Comp.No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
QUA02C01 Jan. 3 06h30m 282°.679 1.0 -4.0/+3.0
QUA02C02 Jan. 3 21h30m 283°.310 9.0 -12.0/+10.0

Parameter

  • Radiant : α = 230°.1, δ = +48°.5
  • Radian Elevation : 20° < h < 80°
  • Using data within ± 0.75 σ in all observed data.

Reference

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