Close encounters of asteroids before and during the ESA GAIA mission

被引：8
|
作者：
Fienga, A [1 ]
Bange, JF [1 ]
Bec-Borsenberger, A [1 ]
Thuillot, W [1 ]
机构：
[1] IMCCE, Observ Paris, CNRS, UMR 8028, F-75014 Paris, France
来源：
ASTRONOMY & ASTROPHYSICS | 2003年 / 406卷 / 02期
关键词：
minor planets; asteroids; astrometry; celestial mechanics; methods : observational;
D O I：
10.1051/0004-6361:20030641
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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.
引用
收藏
页码：751 / 758
页数：8
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