[amsat-bb] Re: geo stationary bird
Richard at g3rwl.demon.co.uk
Mon Nov 5 02:48:59 PST 2007
Thanks for the replies
> Does anyone know if retired birds are switched ON or OFF once they
> get boosted into a retirement orbit ? Could still be useful to us
> even from there.
> For us it just means we need switchable antennas that can be swapped 15
> years after launch.
Accepted. We don't yet know what antenna assemblies will be permissible.
> However, when the satellite enters eclipse, the TV etc transponders are
> run from the batteries. I suspect that at this point, AMSAT would be
> switched off or into some low power mode until the eclipse has passed.
> The extra battery power needed for operation of AMSAT */_and_/* the
> commercial transponder during eclipse would require a significant mass
> increase of the on-board batteries.
But thats the whole point of this exercise (piggy-backing inside a geo
bird); there *is* extra mass availability due to the launch configuration.
Good concept and has my full support as long as P3E doesn't become a
victim of fund diversion.
Richard W L Limebear G3RWL
g3rwl at amsat.org
FOC # 1188
So many beautiful girls ... (sob) so little time
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