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RE: Phase 4 orbit



Wayne,

The implications of having a drifting satellite in a near-geostationary
orbit were recently pointed out in a thread initiated by Bob WB4APR.  I
learned a lot from that thread and I'm sure this approach will receive
further consideration in the future.

Rick
W2GPS
AMSAT LM 2232


-----Original Message-----
From: owner-AMSAT-BB@AMSAT.Org [mailto:owner-AMSAT-BB@AMSAT.Org] On Behalf
Of Wayne Estes W9AE
Sent: Monday, February 16, 2004 11:35 AM
To: amsat-bb@AMSAT.Org
Subject: [amsat-bb] Phase 4 orbit

Rick Hambly wrote:

AMSAT discarded the idea of a P4 satellite quite a while ago. The reasons
included the inability to raise money from 2/3 of the world that couldn't
use it, the high cost and complexity of such a satellite and the limited
lifetime because of the need for station-keeping fuel.

Wayne replies:

This would not be an issue with a "near stationary" orbit that drifts around
the equator, like Arsene.  But even without needing stationkeeping fuel, I
suppose that far more energy is required to get into a near-stationary orbit
than a HEO (highly elliptical) orbit.

Wayne Estes W9AE
Mundelein, IL, USA
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