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Дата изменения: Wed Aug 16 19:15:45 2006
Дата индексирования: Tue Oct 2 10:14:01 2012
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Поисковые слова: earth's atmosphere
Astrodynamics 101


Planetary Approach

"Final Stage of the Hohmann Transfer"


 

Approaching the planetary mass the spacecraft accelerates according to the law:
 

The quantity Vºº2 (as above) is a measure of how much speed a spacecraft (a) needs to shed to go into orbit around a planet or (b) needs to pick up in order to escape its gravitational field. It is sometimes referred to as C3 or launch energy at the instance of departure.









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For Further Infomation Contact: Dr Apostolos Christou