[amsat-bb] ANS Special Bulletin ANS-116.01 AMSAT-NA Opportunity for Rideshare to Geostationary Orbit

[Bryce Salmi]

Triple modular redundancy, NASA EEE INST-002 derating, likely lot by lot
destructive testing on parts. Ability to reset quickly from radiation hits
(in GEO this is much larger of an affect than LEO), Low TID radiation
"wearout".

I'd err more towards graceful failure design than lot by lot destructive
testing.

$$$

On Sun, Apr 26, 2015 at 5:24 PM, David Carr <dc at dcarr.org> wrote:

> A challenge for the group:
>
> Can AMSAT build a satellite with a design lifespan in excess of 20 years?
>
> These launch opportunities seem to come along once every 15+ years.
> Unfortunately, most of our birds seem to last a much shorter time than
> that.  What architectures and design features can we incorporate to achieve
> virtually infinite lifespan?
>
> 73s,
> David KD5QGR
>
> On Sun, Apr 26, 2015 at 6:52 PM, Douglas Quagliana via AMSAT-BB <
> amsat-bb at amsat.org> wrote:
>
> > On 4/25/2015 9:10 AM, JoAnne Maenpaa wrote:
> >
> >> AMSAT is excited to announce that we have accepted an opportunity to
> >> participate in a potential rideshare as a hosted payload on a
> >> geostationary
> >> satellite planned for launch in 2017.
> >>
> >
> > All,
> >
> > This is excellent news.
> >
> > Do we have an official name for this yet? Will it be Project Golf (that
> > is, the next one after Fox?) or Phase IV-A (our first Phase IV
> satellite),
> > or Eagle-2, or perhaps something else?
> >
> > While I know the frequencies/bands have not yet been announced, have any
> > decisions been made about whether the transponder (or transponders?) will
> > this be all analog, digital or both? What other payloads will we have?
> >
> > Does anyone know if we will have our own telemetry downlink?
> >
> > 73,
> > Douglas KA2UPW/5
> >
> >
> > _______________________________________________
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> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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>