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Ursids Result (2014)

Ursids 2014 showed very high activity (the observed activity level was 1.5). The peak time was around λo270°.8. This was later than annual visual peak time. In addition, this peak had a short FWHM as two or three hours.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Dec. 22nd 23h 270°.833 1.46 ± 0.38

Estimated Compornents of Geminid activity

Comp.-No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
URS14C01 Dec. 23rd 00h30m 270°.876 1.5 -1.0/+1.0

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