Re: [amsat-bb] AO-40: Momentum Wheels tested!!!

["Robert McGwier" <rwmcgwier@xxxxxxxx>]

We know the dry mass,  since we will learn the MOI,
and other information,  we will not only know what
mass is left, but we can probably figure the DISTRIBUTION
of this mass,  and that will tell us what tanks have what
in them to a rough degree!

Bob N4HY

----- Original Message ----- 
From: "Bernie Basel" <bbasel@yahoo.com>
To: <amsat-bb@AMSAT.Org>
Sent: Wednesday, August 15, 2001 3:44 PM
Subject: Re: [amsat-bb] AO-40: Momentum Wheels tested!!!


> I was under the impression that the mass of the s/c
> was an unknown due to the post launch mishap.  If we
> do not know the mass of the s/c how do we calculate
> the amount of fuel left?
> 
> 
> Bernie, K3BAZ
> 
> 
> --- Peter Guelzow <peter.guelzow@arcormail.de> wrote:
> > In fact, since the wheel MOIs are exactly known,
> > this means that we would be able to determine s/c
> > MOI to about 5% - from this we could possibly infer
> > how much fuel is left in the N2O4/MMH tanks.
> 
> 
> 
> 
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