CLOSE ENCOUNTERS OF MINOR BODIES WITH THE EARTH

Authors
Citation
A. Carusi et E. Dotto, CLOSE ENCOUNTERS OF MINOR BODIES WITH THE EARTH, Icarus, 124(2), 1996, pp. 392-398
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Astronomy & Astrophysics
Journal title
IcarusACNP
ISSN journal
0019-1035
Volume
124
Issue
2
Year of publication
1996
Pages
392 - 398
Database
ISI
SICI code
0019-1035(1996)124:2<392:CEOMBW>2.0.ZU;2-S
Abstract
This paper contains the statistics of close encounters of observed min or bodies with the Earth. Five classes of small objects have been exam ined, namely: near-Earth asteroids (Aten, Apollo, and Amor), short-per iod comets, and long-period comets. The motion of objects belonging to the first four classes has been integrated over a time span of 821.4 years, while the motion of long-period comets has been followed for 60 years, centered on the discovery epoch. The behavior in time of the m inimum orbit intersection distance (MOID) is studied, and frequency cu rves-of close passages according to the distance from Earth are provid ed and discussed. (C) 1996 Academic Press, Inc.