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Re: AO-40 Telemetry Archive Updated



Peter:

Thanks for the clarifications and I was not careful in
my comments on the SEU.  The SEU  <Temperature> reading is wacko so I
presumed
that the temperature sensor had failed.

I look forward to seeing more now that the full
up flight software is loaded.  I am most interested
to know if we had any indication whatsoever
if the IHU continued to run after the beacon
went off and like everyone else, I am wondering
why the transmitters would not come on with
the proper control sequences to the command
receivers.

GOOD LUCK and thanks a lot for the comments.

Bob

----- Original Message -----
From: "Peter Guelzow" <Peter.Guelzow@arcormail.de>
To: <amsat-bb@AMSAT.Org>
Sent: Wednesday, December 27, 2000 5:15 PM
Subject: Re: [amsat-bb] AO-40 Telemetry Archive Updated


> Dear All,
>
> MCGWIER ROBERT wrote:
>
> > The SEU is reading wacko
>
> There is nothing wrong with the SEU:
> The SEU was configured for 3-Axis mode. It's now
> set to SPIN mode and all sensors apperar to be OK.
>
> > The EPU
> > and LIU read as ON as does the general
> > beacon but the power reading and pressures
> > do not read at all.
>
> The INSTRUMENTATION Power was Off, so no
> valid pressure readings..
>
> EPU and LIU were also turned off in the meantime.
>
> Instrumentation was briefly turned on, there
> was no loss in Helium high pressure.
>
> > The solar array deployment is read as ARMED.
> This must be a faulty reading.. on P3-T they
> all say closed/off. Clearly they did not opened,
> otherwise with the current spin rate they would
> fly away..
>
> > It is most significant that it was chosen apparently
> > NOT to power up the LIU at all, even for pressure
> > readings.  They are clearly being very conservative.
>
> The LIU does not need to be turned On for pressure reading.
> This is just done by the "Instrumentation Power".
>
> 73s Peter
>
> ----
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>

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