Re: Lowest practical lunar and Martian orbits?
- From: "Tuvas" <tuvas21@xxxxxxxxx>
- Date: 25 Mar 2006 07:35:47 -0800
If you take a look at the moon, it is possible to orbit closely,
however, it isn't really practical to orbit the moon for very long
anyways. The moon is pretty irregular in it's orbit, so thus any low
orbit will eventually fail, although a few months is possible.
As for a martian orbit, well, I know that the MRO orbits for
aerobraking below 100km, for several months at a time. Due to the
expense, however, most orbits go a bit higher so that they won't crash
into Mars anytime soon, the typical orbit is 300km. For a point of
reference, this orbit around the Earth would probably lead to a
re-entry in only a few months.
150 km around the earth is possible, but the orbit would only last a
very few weeks, it isn't really practical. Most man rated spacecraft
orbit more in the range of 300-400 km.
.
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