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Quadrantids Results(2016)

2016 Quadrantids showed the high activity as 2014. The peak time around 283°.056(05h 4th UT) was earlier than annual year. The activity level as 7.36 was higher. In addition, the activity before main peak around λo282°.674(20h 3rd UT) means something sub-peak activity. Since FWHM was too narrow as one or two hours, however, It is not easy whether this activity is sub-peak activity.

Activity Level (using worldwide data)

Observed Peaks

Time(UT) Solar Long. Activity Level
Jan. 4 05h 283°.056 7.36 ± 1.45

Estimated Compornents of Quadrantid activity

Comp.No. Peak Time(UT) Solar Long. A(max) FWHM(hr)
QUA16C01 Jan. 4 07h30m 283°.061 8.0 -6.5/+6.0

Parameter

  • Radiant : α = 230°.1, δ = +48°.5
  • Radian Elevation : 20° < h < 75°
  • Using data within ± 0.50 σ in all observed data.

Reference

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