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Orbital similarity functions - application to asteroid pairs

Rożek, A., Breiter, S., Jopek, T. J. (2011) Orbital similarity functions - application to asteroid pairs. Monthly Notices of the Royal Astronomical Society, 412 (2). pp. 987-994. ISSN 0035-8711. (doi:10.1111/j.1365-2966.2010.17967.x) (KAR id:72974)


The paper expands the idea of Vokrouhlický and Nesvorný who used a modified Zappalà et al. metric with osculating elements in search for pairs of asteroids suspected of having a common origin. Using six different orbital similarity functions, we find that five of them display a similar excess of close pairs in the catalogue of osculating elements. The excess is even higher when mean orbital elements are used. Similarly, when the mean elements are applied, there is a better agreement between the closest pairs found in the same catalogue using different metrics. The common subset of 62 pairs from five lists of 100 closest pairs according to different distance functions is provided. Investigating an artificial sample of asteroid orbital pairs with a known initial orbital velocity difference we find that the Drummond metric best preserves orbital proximity over long time intervals.

Item Type: Article
DOI/Identification number: 10.1111/j.1365-2966.2010.17967.x
Additional information: This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2010 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Subjects: Q Science > QB Astronomy
Q Science > QB Astronomy > QB651 Planets, Minor
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Agata Makiela
Date Deposited: 13 Mar 2019 16:51 UTC
Last Modified: 16 Nov 2021 10:26 UTC
Resource URI: (The current URI for this page, for reference purposes)

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