Space Technology Research Group, National Aerospace Laboratory(NAL)
Space Technology Research Group, National Aerospace Laboratory(NAL)
出版者
航空宇宙技術研究所
出版者(英)
National Aerospace Laboratory(NAL)
雑誌名
航空宇宙技術研究所報告
雑誌名(英)
Technical Report of National Aerospace Laboratory TR-323
巻
323
ページ
26
発行年
1973-07
抄録(英)
The effects of the gravitational attractions of the sun and moon on the motion of an artificial earth satellite are investigated using Lagrange’s planetary equations. The complete gravitational disturbing function expressed in osculating elliptic elements is used. As regards the orbital elements of the disturbing body, it is assumed that the semimajor axis, the eccentricity and the inclination of the orbital plane are constants and that the longitude of the ascending node, the argument of the perigee and the mean anomaly are linear functions of time. Neglecting the coupling effects between the oblateness of the earth and the attraction of the disturbing body, perturbations of the first order are determined. The theory is applied to the orbit of a geostationary satellite and the variations of orbirtal elements are calculated. On the basis of the results of computations, the initial conditions giving orbits that have inclination variations amounting to a few degrees for two or three years are determined.