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Ursids Result (2010)

There was no unusual activity. The observed activity level shows between 0.5 and 0.6. These results are under +1.5 σ of usual activity level. Peak time was around λo-270°.5. This was similar result of visual annual result.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Dec. 22nd 15h 270°.521 0.49 ± 0.22

Estimated Compornents of Geminid activity

Comp.-No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
URS10C01 Dec. 22nd 16h30m 270°.563 0.6 -7.0/+3.0

Parameter

  • Radiant : α = 217°, δ = +76°
  • Radian Elevation : 25° < h < 70°
  • 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