著者

河野 功 杢野 正明 山中 浩二 鈴木 孝 小山 浩 功刀 信

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. C編 (ISSN:03875024)

巻号頁・発行日

vol.68, no.671, pp.2059-2066, 2002-07-25

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ETS-VII is a test satellite to perform in-orbit demonstration of rendezvous docking (RVD) technology, which will be necessary for advanced space activities in the early 21^st century. ETS-VII successfully performed autonomous RVD in the first experiment flight. But in the second experiment flight, seberal times of Z-thruster misfiring occurred and they prevented for ETS-VII to accomplish docking for three weeks. To verify all technical items, the third experiment flight was replanned on condition that firing Z-thrusters should be minimized. And we modified on-board software to continue approach in case that Z-thrusters misfiring occur. ETS-VII succeeded in the third experiment as the result of these countermeasures. We present replanning of the third experiment flight and its result in this paper.