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Ursids Result (2012)

The activity level was similar result as 2010. The peak time was around λo270°.6.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Dec. 22nd 07h 270°.682 0.53 ± 0.28

Estimated Compornents of Geminid activity

Comp.-No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
URS12C01 Dec. 22nd 05h30m 270°.597 0.6 -4.0/+4.0

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