[amsat-bb] Re: AO-07 healthy CW

Greg D. ko6th_greg at hotmail.com
Wed Nov 15 20:20:09 PST 2006

Hi Sil,

"Crushing note?"  Perhaps.

On the other hand, I think it would be very instructive for the readers of 
this BB to use this data as a partly hypothetical exercise in telemetry 
analysis.  If this had been an actual satellite's telemetry (er, you know 
what I mean), what would it tell us?  How can we determine what information 
is "dodgy", and what may be real.  If we were to take it at face value, what 
would it tell us about the various systems in the bird?  AO-07 is simple 
enough internally that, as a training exercise, we might actually be able to 
understand what is going on inside.

When it comes time to handle a real satellite emergency, or even just 
watching one of our operational birds gracefully age, I think having gone 
through an exercise such as this would be very valuable.  It will teach the 
"armchair control operator" in each of us what is involved, giving us a bit 
more patience and understanding as the real work goes on.  And perhaps, we 
just might grow the level of interest in one or more members or potential 
members to become more involved in the design, launch, or operation of a 
future satellite.

So, good work, Sil!  What about another person's view of what the telemetry 
tells us?  Does anyone have a link back to the design documents (such as 
they might be) where, for example, we could look at the battery charge 
circuit and try to deduce which cells had gone bad?  I for one would enjoy 
the coaching and mentorship of someone experienced in this art.

Greg  KO6TH

----Original Message Follows----
From: Sil - ZL2CIA <caleriffic at paradise.net.nz>
Reply-To: zl2cia at amsat.org
To: Geoff <vk2tfg at ozemail.com.au>
CC: Martin Gillen <va3sie at gmail.com>, AMSAT-BB <amsat-bb at amsat.org>
Subject: [amsat-bb] Re: AO-07 healthy CW
Date: Wed, 15 Nov 2006 21:06:16 +1300

Geoff wrote:
 > Check channel 6D, anything other than about 0.5 means that the others
 > are likely to be dodgy (invalid).
 >     73 de Geoff vk2tfg.
 > Martin Gillen wrote:

The moment that I went online and sent my message about the AO-07
telemetry was also the moment that I downloaded Geoff's crushing note.

Sil - ZL2CIA
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