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Re: RAgeo, a low cost GEO bird



On Tue, 22 Jul 2003, Grant Hodgson wrote:

> There are a couple of issues with... a satellite into GEO without fuel
>
> 1) If the inclination drifts... it will 'move' [up and down every 24hrs)
> 2) the ... gravitional field is not connstant... the satellite would
> drift around the equator.  For example, a satellite above the Atlantic
> would drift east... until it reaches the Indian Ocean, where it will stay.

Good points.  We can track inclination drift and we can use the uneven
geopotential to our advantage.  I think there is also a minimum over the
USA at 105 degrees west longitude...  I updated the RAgeo web page:

de WB4APR

http://www.ew.usna.edu/~bruninga/RAgeo.html


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