Astrodynamics science about itokawa gravity and ephemeris

M. Yoshikawa, H. Ikeda, H. Yano, J. Saito, T. Kubota, T. Hashimoto, A. Fujiwara, J. Kawaguchi, T. Kominato, M. Matsuoka, K. Shirakawa, T. Ohnishi, S. Abe, T. Mukai, R. Gaskell, D. Scheeres

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

Hayabusa was moving near Asteroid Itokawa for about three months in 2005. Using tracking and navigation data such as range, Boppler, distance from the asteroid, and optical images taken by navigation cameras, we estimated the mass of Itokawa for several orbital phases. The results are consistent in their error ranges. The estimated mass of Itokawa is 3.51 ± 0.105 (1010 kg), from which the density of Itokawa is derived as 1.9 ± 0.13 (g/cm3). This is one of the important characteristics to understand the nature of Itokawa. We are also trying to investigate the accuracy of the ephemeris of this asteroid.

本文言語English
ホスト出版物のタイトルCollection of Technical Papers - AIAA/AAS Astrodynamics Specialist Conference, 2006
出版社American Institute of Aeronautics and Astronautics Inc.
ページ1515-1521
ページ数7
ISBN(印刷版)1563478226, 9781563478222
DOI
出版ステータスPublished - 2006
外部発表はい
イベントAIAA/AAS Astrodynamics Specialist Conference, 2006 - Keystone, CO, United States
継続期間: 2006 8 212006 8 24

出版物シリーズ

名前Collection of Technical Papers - AIAA/AAS Astrodynamics Specialist Conference, 2006
3

Conference

ConferenceAIAA/AAS Astrodynamics Specialist Conference, 2006
国/地域United States
CityKeystone, CO
Period06/8/2106/8/24

ASJC Scopus subject areas

  • 工学(全般)

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