軌道感度解析プログラムとその応用

概要

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In the first period of 1990's two missions which utilized orbit transfer technology amplified by swing-by operation with moon were executed. One was HITEN, launched spring in 1990,which main purpose is to make sure of the swing-by operation technique, and the other was Geotail, launched spring in 1992,of which target was to observe interaction between solar plazma and earth magnetic field in the night side of the earth. In both missions the swing-by operation was utilized to cast satellite into long elliptical orbits. Including these missions. so called sensitivity analysis is always required for planning orbit design. Conventional Sensitive Analysis Program is designed so as to analyze sensitivity for fly-by orbit transfer, and its coordinate center is earth gravity center. But in case of swing-by orbit transfer with moon, this program is not enough to analize orbit transfer sensitivity using swing-by operation. Hence we develop newly sensitivity analysis program including swing-by operation, called SAPM. In this report first we describe the design of SAPM using special perturbation methoc, then the analytical design using twobody, patched conic methd, and finally we show how much the satellite orbit is amplified by means of the swing-by operation using two examples.
宇宙航空研究開発機構の論文