[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Preferred Phase 3 Orbits



John:

While you might think that the coverage looks
great at this inclination (it does), you are forgetting
a very important part of the geometry of the
orbit.   There will be times of the year in this
orbit when it will be impossible to keep the antennas
biased towards the earth while keeping unfurled
solar panels at the sun.

Bob
N4HY

----- Original Message ----- 
From: "laura halliday" <marsgal42@hotmail.com>
To: <tosca005@tc.umn.edu>; <amsat-bb@AMSAT.Org>
Sent: Tuesday, January 09, 2001 6:38 PM
Subject: Re: [amsat-bb] Preferred Phase 3 Orbits


> John P. Toscano <tosca005@tc.umn.edu> wrote:
> 
> >Why is a highly inclined orbit desirable for a Phase 3
> >satellite?
> 
> Because the argument of perigee is constant for a 63.5
> degree orbit.
> 
> >Wouldn't a high, elliptical, 16-hour orbit at near zero
> >inclination be quite satisfactory...
> 
> There has been discussion of follow-on projects in such
> orbits. Ariane 5 launches are desirable for this, since
> the orbit they provide has a high enough perigee that
> such a satellite will be up there for a long time to come.
> 
> References: Davidoff, SMAD, Bate, Mueller & White,
> AMSAT Proceedings, etc.
> 
> Laura Halliday VE7LDH     "Que les nuages soient notre
> Grid: CN89mg               pied a terre..."
>                                    - Hospital/Shafte
> 
> _________________________________________________________________________
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
> 
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
> 

----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home