Meteor Radiant Distributions Observed from Grahamstown, South Africa

Details Meteor Radiant Distributions Observed from Grahamstown, South Africa Meteor Radiant Distributions Observed from Grahamstown, South Africa

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995em%26p...68..451p&link_type=abstract

Earth, Moon, and Planets, Volume 68, Issue 1-3, pp. 451-464

Physics

3

Scientific paper

Some results of an all-sky survey of meteor radiant distributions over an 8 year period are presented in the form of radiant activity plots for each month of the year, deduced from data obtained with the monostatic direction-finding meteor radar at Grahamstown (26.5 E, 33.3 S). The major showers stand out prominently in the appropriate months, as expected, and sporadic activity is found to be largely associated with diffuse sources ˜ 20° west of the sun and ˜ 20° east of the antihelion point. These sources exhibit an annual variability which is similar in successive years. Although there has been no allowance here for instrumental bias it is concluded that the results reflect significant seasonal trends which warrant further exploration. Ir is suggested that single-station radars could play an important role in this regard. Attention is also drawn to an apparent source at the south celestial pole, and its possible origin is briefly discussed.

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