- 著者
-
森 治
櫛木 賢一
成尾 芳博
澤井 秀次郎
志田 真樹
丸 祐介
道上 啓亮
中塚 潤一
高見 剛史
浦町 光
- 出版者
- 一般社団法人 日本航空宇宙学会
- 雑誌
- 航空宇宙技術 (ISSN:18840477)
- 巻号頁・発行日
- vol.18, pp.29-35, 2019 (Released:2019-02-01)
- 参考文献数
- 9
- 被引用文献数
-
1
1
The chemical propulsion system of Hayabusa-2 consists of 12 bipropellant thrusters whose thrust is 20N. The communication with Hayabusa was lost due to the fuel leakage just after touchdown in 2005. Akatsuki failed to enter orbit around Venus in 2010. The chemical propulsion system of Hayabusa-2 took measure to prevent these accidents. It satisfied the requirements of continuous injection for SCI (Small Carry-on Impactor) operation. The short injection impulse was estimated using flight data. It was changed by the thruster temperature and the frequency of use. The approximation of the long injection impulse was improved using TCM (Trajectory Correction Maneuver) data and VIC (Velocity Increment Cut) test data. This paper presents development and outward operation of the chemical propulsion system of Hayabusa-2.