Volume 406, Number 2, August I 2003
|Page(s)||751 - 758|
|Section||Atomic, molecular, and nuclear data|
|Published online||17 November 2003|
Close encounters of asteroids before and during the ESA GAIA mission*
Institut de mécanique céleste et de calcul des éphémérides (IMCCE) – Observatoire de Paris, UMR 8028 du CNRS, 77 avenue Denfert-Rochereau, 75014 Paris, France
Corresponding author: A. Fienga, firstname.lastname@example.org
Accepted: 15 April 2003
Observation of close encounters of asteroids is a powerful method to determine their masses. A systematic search of such close encounters of asteroids with diameters larger than 40 km has been made thanks to a procedure to select the most efficient phenomena by means of the observable gravitational deflection. This study allows us to give lists of such single (one encounter) and multiple (several encounters between two pairs of asteroids) phenomena that will be observable from ground based astrometric telescopes from 2003 to 2022. We also give lists of single and multiple phenomena spanning 2010-2022 and implying less sensitive deflections only accessible by space astrometry. These last encounters may be observed during the ESA GAIA space mission.
Key words: minor planets, asteroids / astrometry / celestial mechanics / methods: observational
© ESO, 2003
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