Comparative analysis of mathematical models for estimating the impact probability of asteroid Apophis

Methods for estimating the impact probability of asteroid Apophis were implemented. The probability of a collision was assessed using two methods: the Monte Carlo method, and the second one, utilizing a ratio between the interval of values of orbital elements, leading to a collision, and the confide...

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Bibliographic Details
Main Authors: A. E. Derevyanka, A. F. Zausaev
Format: Article
Language:English
Published: Samara State Technical University 2012-06-01
Series:Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki
Online Access:http://mi.mathnet.ru/eng/vsgtu1058
Description
Summary:Methods for estimating the impact probability of asteroid Apophis were implemented. The probability of a collision was assessed using two methods: the Monte Carlo method, and the second one, utilizing a ratio between the interval of values of orbital elements, leading to a collision, and the confidence intervals of orbital elements. It was established that the variation in the semimajor axis makes the main contribution to the estimation of the impact probability. The expected date and the estimate of the probability of collision of asteroid Apophis and Earth were computed.
ISSN:1991-8615
2310-7081