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Quadrantids Results(2001)

In 2001, the main peak was caught around 283°.320 (21h 3rd UT). After that, sub peak was observed around 283°.5.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Jan. 3 15h 283°.320 6.40 ± 0.79
Jan. 3 21h 283°.575 4.81 ± 1.98

Estimated Compornents of Quadrantid activity

Comp.No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
QUA01C01 Jan. 3 06h30m 282°94 1.5 -8.0/+8.0
QUA01C02 Jan. 3 16h00m 283°35 5.5 -1.1/+1.5
QUA01C03 Jan. 3 21h30m 283°58 4.0 -3.0/+4.0

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