Extension of Stable Terminator orbit around small bodies

Yusuke Oki, Yuichi Tsuda, Jun'ichiro Kawaguchi

研究成果: Conference contribution

抄録

In the exploration mission of small bodies orbiting operation is very significant in terms of fuel saving and scientific observation of small bodies. Although the force field around a small body is strongly perturbed, there is a family of stable orbits which is called "Terminator Orbit". While the terminator orbit is stable, it also has disadvantages. The terminator orbit's orbital plane must always face the sun and lack flexibility in orbit design. Moreover, since the orbital plane lies in night side, optical observation of the small body is extremely restricted. Therefore, this study extends the terminator orbit concept to a group of stable orbits which includes the terminator orbit and does not suffer from impact with surface or escaping. This extended terminator is called "Quasi-Stable Terminator Orbit (QSTO)" in this study. This work aims to reveal the solution space and the usability of QSTO. Thus, we succeeded in analytically deriving the existence range of the long-term QSTO and verified that numerical and analytical solutions coincide well. As a result, the calculation time required for solving the existence range of the long-term stable QSTO can be greatly shortened, and it became possible to obtain the range when changing the strength of the small body's gravity and the SRP in accordance with various missions in a short time.

本文言語English
ホスト出版物のタイトル68th International Astronautical Congress, IAC 2017
ホスト出版物のサブタイトルUnlocking Imagination, Fostering Innovation and Strengthening Security
出版社International Astronautical Federation, IAF
ページ7543-7552
ページ数10
ISBN(印刷版)9781510855373
出版ステータスPublished - 2017
外部発表はい
イベント68th International Astronautical Congress: Unlocking Imagination, Fostering Innovation and Strengthening Security, IAC 2017 - Adelaide, Australia
継続期間: 2017 9 252017 9 29

出版物シリーズ

名前Proceedings of the International Astronautical Congress, IAC
11
ISSN(印刷版)0074-1795

Other

Other68th International Astronautical Congress: Unlocking Imagination, Fostering Innovation and Strengthening Security, IAC 2017
国/地域Australia
CityAdelaide
Period17/9/2517/9/29

ASJC Scopus subject areas

  • 航空宇宙工学
  • 天文学と天体物理学
  • 宇宙惑星科学

フィンガープリント

「Extension of Stable Terminator orbit around small bodies」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル