[amsat-bb] Re: High orbit satellites?
ross at topwire.co.nz
Sat Aug 31 14:47:56 PDT 2013
I think it takes about 2500m/s delta V to get from from LEO to a GTO.
How feasible is it to use some type of an electric thruster (high
specific impulse but low net thrust - eg a hall effect thruster or
similar device) to slowly crawl up to GTO from LEO?
I imagine that such a bird would charge it's batteries from solar power
for most of an orbit, and would power the thruster from battery power
during each perigee to slowly raise the apogee altitude. This would
allow the use of a thruster with an peak electrical demand that is
higher than the peak power generating capacity of the PV cells.
73 ZL2WRW Ross Whenmouth
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