How to establish and keep orthogonal constellation by two orbiters under perturbation

Naoko Ogawa, Yuichi Tsuda, Yasuhiro Kawakatsu, Jun'ichiro Kawaguchi

研究成果: Conference contribution

抄録

This paper describes how to establish and maintain an orthogonal constellation by two orbiters. We assume the constellation where one orbiter looks down upon the orbital plane of another from the apoapsis, or the normal vector of one orbiter and the eccentricity vector of another are parallel. There have been demands and requests for such orthogonal constellation composed by an in-situ observation orbiter and a remote-sensing orbiter in studies of planetary atmosphere. Since their orbits can be perturbed by several external forces, they must be designed carefully so as to keep orthogonality. In this paper, we introduced the "Orthogonality Index" by using orbital elements of two orbiters, which provides us a quantitative index for orthogonality of the two orbits. By differentiating the index with respect to time, we derived several conditions to keep orthogonality via a bottom-up approach. They were well coincident with the top-down results derived in our former approach. Four solutions for the inclination of the remote-sensing orbiter were derived, which is independent from orbit shapes or central celestial bodies. If we assume planets with a relatively large J2 term such as the earth or the mars, the orbital elements for the in-situ orbiter can also be calculated easily.

本文言語English
ホスト出版物のタイトル61st International Astronautical Congress 2010, IAC 2010
ページ567-570
ページ数4
出版ステータスPublished - 2010
外部発表はい
イベント61st International Astronautical Congress 2010, IAC 2010 - Prague, Czech Republic
継続期間: 2010 9 272010 10 1

出版物シリーズ

名前61st International Astronautical Congress 2010, IAC 2010
1

Other

Other61st International Astronautical Congress 2010, IAC 2010
国/地域Czech Republic
CityPrague
Period10/9/2710/10/1

ASJC Scopus subject areas

  • 航空宇宙工学
  • 天文学と天体物理学

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