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Re: AO-40: transponder off!!



That looks like a very good explanation...wish
someone would translate the text.

de Bill, N4DH

At 18:06 5/30/01 -0400, Lee wrote:
>Hi Doug,
>
>Take a look at this page on the amsat-dl site.  The text is in German but
>the pictures get the message across.
>
>http://www.amsat-dl.org/journal/dl6dbn/adlj-40g.htm
>
>Lee-KU4OS
>
>----- Original Message -----
>From: "Douglas Braun & Nadia Papakonstantinou" <doug@dougbraun.com>
>To: "Peter Guelzow" <peter.guelzow@arcormail.de>; <amsat-bb@AMSAT.Org>
>Sent: Wednesday, May 30, 2001 16:53 PM
>Subject: Re: [amsat-bb] AO-40: transponder off!!
>
>
>My version of SatTrack predicts squints as low as 22 degrees
>for this attitude.  Did I mess up my fix for AO-40 vs. AO-13
>attitude calculations?
>
>My understanding was that an ALAT of something like -5 degrees is
>optimum for me, since it means that the antennas were pointing
>at the northern hemisphere at apogee.  Thus, an ALAT of -26 deg.
>would give me a minimum squint of 22 degrees, but somebody in
>Sough Africa, for example, would never see less than 30 degrees squint.
>
>Doug
>NA1DB
>
>At 02:42 PM 5/30/01 , Peter Guelzow wrote:
>
> >Dear All,
> >
> >Du to changes of the spacecraft latitude for the ARCJET cold firing,
> >the squint pointing angle is more than 30° (at ALON/ALAT = 345°/-26°)
> >and not currently useful for transponder operation.
>
>----
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>
>
>----
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