it doesn't work that way. Drag force stlows down an SV,



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送交者: steven 于 2006-4-03, 18:48:45:

回答: 有无可能利用月亮的引力进行修正 由 xinku 于 2006-4-03, 18:06:40:

and forces like the Sunlight shinning on the solar panel accelerates an SV (it is very small, but continuous. After sometime, it pushes significant enough for the SV to move out of its control box.) Plus the gravational forces from both Sun, moon and earth, especially when the SV is in geostationary orbit where the gravitational forces from other celectrial bodies like Sun and moon become significant. All these forces either translate into changing the energy of the SV which means changing the orbit, or making it vibrates near its plane. In anycase, when the SV moves out of the control box, it doesn't perform very well in terms of its mission. Like for signal relays, it may ended up weak signal, or the shortening the battery life etc. The question is not whether you can use the gravitational force of the moon to your advantage, the question is: how to maintain your SV in its optimal position while all these forces act on it.



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