RE: [amsat-bb] AO-40

[Robert McGwier <rwmcgwier@xxxxxxxxxxx>]

May I refer you to:

http://www.amsat.org/amsat/ftp/articles/g3ruh


where James Miller has written in some detail about
tracking satellite in elliptical orbits.  a111.zip
contains two figures and a detailed note about his
programs plan10/plan13.

In this zip file you will find Fig01.gif.


This figure shows the angles sq (squint).  Mean Anomaly
is the angular measure which is directly proportional
to time, that is used to tell how far around one orbit
you are.  Since in the early days we worked with byte
oriented computers, historically, we have divided the
orbit into 256 "parts".  If the satellite is at MA 0,
it is at perigee or the closest approach to the earth.
If it is 128 in most tracking programs, it is at apogee
or furthest point from the earth.

There are several articles, graphs, etc on the amsat
web site

http://www.amsat.org

which will be useful to you in understanding these terms.


Bob
N4HY

-----Original Message-----
From: owner-AMSAT-BB@AMSAT.Org [mailto:owner-AMSAT-BB@AMSAT.Org]On
Behalf Of Tim Billingsley
Sent: Saturday, July 13, 2002 2:03 PM
To: Christopher E Phelps; amsat-bb
Subject: Re: [amsat-bb] AO-40


> get aquatinted with the terminology of working this bird like MA, squint
> etc.
>

I thought that was the lady that brought me into this world and what you did
when the light was too bright ...

I got a long way to go on the Sat Stuff

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