Approach trajectory Second transfer orbit 4000 km °C First transfer orbit ГВ- -ГА——
Approach trajectory Second transfer orbit 4000 km °C First transfer orbit ГВ- -ГА——
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A space probe is to be placed in a circular orbit of radius 4000 km about the planet Mars. As the probe reaches A, the point of its original trajectory closest to Mars, it is inserted into a first elliptic transfer orbit by reducing its speed. This orbit brings it to point B with a much-reduced velocity. There the probe is inserted into a second transfer orbit by further reducing its speed. Knowing that the mass of Mars is 0.1074 times the mass of the earth, that rA = 9000 km and rB = 180 000 km, and that the probe approaches A on a parabolic trajectory, determine the time needed for the space probe to travel from A to B on its first transfer orbit.
Transcribed Image Text:Approach trajectory
Second transfer orbit
4000 km
°C
First
transfer
orbit
ГВ-
-ГА——
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