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Re: AO-40 attitude determination



I forgot YACE was part of  IHU-2.  I haven't been able to copy telemetry since
the V xmtr went dead.  The dish will be ordered next week and the downconverter
soon after that.  Then maybe I can start copying againg.  Thanks.

Dave R

Paul Willmott wrote:

> Dave,
>
> YACE is a part of the IHU-2 system, the IHU-2 system is currently powered
> off, ... and hasn't been tested since control was re-established, ... to my
> knowledge and reading of telem.
>
> The 2 or 3 JPEG pictures that YACE produces even with high compression take
> at least 60 D Blocks to download, ... we are currently only getting between
> 60 and 120 A blocks per orbit, ... if they turned on IHU-2 and YACE we would
> only get a hand full of A blocks, ... and given that we miss whole MAs of
> telem, we might not even get a whole picture, .... so the answer is no, ...
> YACE can't help here, though I look forward to decoding the pictures again
> once we get a better orientation for downlink.
>
> BTW IHU-2 is almost next door to S2 MB TX, so the chances are its OK!
>
> Cheers
> Paul, VP9MU
> ----- Original Message -----
> From: "David Reinhart" <wa6ilt@bellatlantic.net>
> To: <amsat-bb@AMSAT.Org>
> Sent: Thursday, January 25, 2001 20:13
> Subject: [amsat-bb] AO-40 attitude determination
>
> > Not long after launch I remember reading that the command team used the
> > YACE package to help determine the attitude of the space craft.  Does
> > anybody know if YACE survived the "event"?  If it has, is there any
> > chance it might be used to help determine the s/c attitude?
> >
> > Dave Reinhart
> >
> > ----
> > Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> > To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
> >

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