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Re: Alon/Alat, WinOrbit, and Squint



Hello Paul:
For WinOrbit.
The AO-40 has the high gain antennas in (- Z) side contrary to the AO-13.
For this reason, the attitude that you should introduce in your program
needs a small alteration. The data obtained of ALON/ALAT can be 45/2  ejem.
http://www.ea.amsat.org/noticias.htm#AO-40
The data that you should introduce in the program will be A = ALON + 180
but if  A > 360, then A = 360 - A
ALAT will be same but with changed sign.

ALON= 180 + 45 = 225
ALAT= -2

73 de Miguel, EA1BCU

----- Original Message -----
From: "Paul Yeager" <w4ski@arrl.net>
To: <amsat-bb@AMSAT.Org>
Sent: Wednesday, September 04, 2002 6:09 PM
Subject: [amsat-bb] Alon/Alat, WinOrbit, and Squint


> Help!
>
> I have been trying to get WinOrbit to display squint for AO-40.  I have
> created a AO-40.att file in the databases/sat directory, with an attitude
> section as follows (latest numbers from the AMSAT-DL page):
>
> [Attitude]
> Alat = 2
> Alon = 45
>
> I suspect that I have failed to do something correctly, or have missed
> something.  Running WinOrbit in simulation mode, Alon = 0 and Alat = 0
when
> MA = 0 in the table window.
>
> Anyone out there have any ideas?
>
> Thanks in advance,
> Paul W4SKI
>
>
> ----
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>
>



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