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Quadrantids Results(2003)

In 2003, the main peak was earlier than annual year as 283°.01. After the main peak, sub peak was observed around 283°.5. Since there were not enough observed data, caluculated values had wide error-bar.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Jan. 3 20h 283°.010 6.42 ± 1.72
Jan. 4 09h 283°.561 3.42 ± 0.48

Estimated Compornents of Quadrantid activity

Comp.No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
QUA03C01 Jan. 3 20h30m 283°.010 6.0 -2.0/+2.0
QUA03C02 Jan. 4 10h00m 283°.602 3.0 -2.0/+1.5

Parameter

  • Radiant : α = 230°.1, δ = +48°.5
  • Radian Elevation : 10° < h < 75°
  • Using data within ± 1.00 σ in all observed data.

Reference

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