@inproceedings{oai:jaxa.repo.nii.ac.jp:00005587,
 author = {歌島, 昌由 and 野田, 篤司 and Utashima, Masayoshi and Noda, Atsushi},
 book = {宇宙航空研究開発機構特別資料: 低推力・連続加速を用いた宇宙ミッションに関する研究会論文集, JAXA Special Publication: Collection of Papers Presented at the Meeting on the Study of Space Missions Propelled by Low-Thrust and Sustained Acceleration},
 month = {Feb},
 note = {This paper studies an orbital maintenance of a satellite with the altitude of about 180 km by the thrust of ion engines. Current earth observation satellites adopt the frozen orbit in which the altitude profile for one orbital period is almost fixed. The drag-free system could cancel the air drag and realize the frozen orbit. The installation of the drag-free system, however, causes a complicated and expensive satellite system. Therefore, we studied different methods and found an excellent orbit in which the mean eccentricity vector was kept constant by only adjusting the thrust of the ion engine in the interval of one orbital period. We call it 'New Frozen Orbit.' Furthermore, the 'new frozen eccentricity vector' is positively stable, and then the mean eccentricity vector autonomously converges to the 'new frozen eccentricity vector' and is kept there only by maintaining the mean altitude., 資料番号: AA0063739005, レポート番号: JAXA-SP-07-020},
 pages = {23--31},
 publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)},
 title = {新凍結軌道による超低高度衛星の軌道保持},
 volume = {JAXA-SP-07-020},
 year = {2008}
}