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Quadrantids Results(2005)

In 2005, the peak FWHM was shorter than annual year. The main peak was seen around 13h 3rd UT (283°.213). After this main peak, the high activity level was seen again around 283°.5. This is similar as 2003 result.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Jan. 3 13h 283°.213 5.96 ± 0.34

Estimated Compornents of Quadrantid activity

Comp.No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
QUA05C01 Jan. 3 13h00m 283°.213 1.0 -12.0/+12.0
QUA05C02 Jan. 3 15h00m 283°.294 5.0 -3.0/+2.5
QUA05C03 Jan. 3 20h00m 283°.508 3.0 -2.0/+2.0

Parameter

  • Radiant : α = 230°.1, δ = +48°.5
  • Radian Elevation : 15° < 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