The Present-day Flux of Meteorites to the Earth

摘要: Estimates of the meteorite influx to Earth based on historical observations or collections meteorites from densely populated areas have produced discordant results. Observations meteoric fireballs between 1974 and 1985 by Canadian camera network are used derive present flux, using number events in a measured interval employing theory meteor physics calibrate mass scale. It is concluded that 4500 per year drop at least 1 kg where uncertainty estimates about factor two. The observed distribution orbital parameters meteoritic expected variation flux as function time day, season geographic latitude. There evidence for existence groups related orbits although reality their evolution deserve further study.