[amsat-bb] Re: could we raise orbit etc.
donmc at xtra.co.nz
Tue Feb 20 15:20:30 PST 2007
I agree that the earth's field is miniscule, but that wasn't really the
mechanism for orbital change that I was proposing.
I was really thinking (?) about the interactions between the earth and
the sun's ( or another planet...Jupiter?) magnetic fields.
The Earths field is not a classic dipole system, and continually
changes with (solar) activity. My thought was maybe these changes could
be utilised to very slowly change the crafts attitude and increase its
The magnet/coil systems presently used to control attitude do interact
with the earths field, but this is done to maintain a reasonably stable
orbit. If the units could be operated to coincide with changes in the
fields encountered in space then the orbit will change!
The trick would be predicting when to operate the systems to give the
This would be immensely complicated but I suppose dreams are free.
This link may be interest, it shows some of the research being done in
this area. I'm sure there are others, NASA has some good stuff as well.
Thanks for your previous reply.
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