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Re: Further analysis of the last telemetry from AO-40
- Subject: Re: [amsat-bb] Further analysis of the last telemetry from AO-40
- From: Jon Ogden <na9d@xxxxxxxxxxxxxx>
- Date: Sun, 24 Dec 2000 16:30:01 -0600
- In-Reply-To: <3A4645AC.F95C3D0C@tc.umn.edu>
- User-Agent: Microsoft-Outlook-Express-Macintosh-Edition/5.02.2022
on 12/24/00 12:51 PM, John P. Toscano at tosca005@tc.umn.edu wrote:
>>> that we are going to have a serious pucker factor
>>> in trying to use the motor again.
>>
>> What impact would it have on the design if it was
>> decided not to use the motor again?
>
> In simplest terms, it would mean that AO-40 would never achieve the
> orbit it was designed for. Since there is a second motor (the
> ammonia arcjet), the command team could brainstorm a new, "next
> best available target orbit attainable with available resources"
> and try for that instead, if forced to do so.
One other question to be considered: Is the current orbit stable? I know
next to nothing about orbital mechanics. But AO-13 died a firey death
because of an orbital instability. We wouldn't want the same thing to
happen to P3D. But then again, it might be fine.
73,
Jon
NA9D
-------------------------------------
Jon Ogden
NA9D (ex: KE9NA)
Member: ARRL, AMSAT, DXCC, NRA
http://www.qsl.net/ke9na
"A life lived in fear is a life half lived."
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