# [amsat-bb] Re: Geosyro orbit.

Alan VE4YZ ve4yz at mts.net
Tue Sep 15 09:47:59 PDT 2009

```Duh, distance from center of earth is 42000km   ( add, don't subtract dummy
)

So it is 2TAN 6378/42000 = about 17 degrees.

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Alan VE4YZ
Sent: September 15, 2009 11:42 AM
To: 'Joe'; 'BB'
Subject: [amsat-bb] Re: Geosyro orbit.

I can't believe I couldn't Google this, so

Earth Radius at equator = 6378 km
GeoSynch orbit = aprox 36000 km above sea level or aprox 30,0000 from center
of earth

Angle = 2TAN 6378/30000 = aprox 24 degrees.

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Joe
Sent: September 15, 2009 11:07 AM
To: BB
Subject: [amsat-bb] Geosyro orbit.

Hi All,

I have a couple of questions,  How big is the earth from a geosyncronous
(sp?) orbit.

Like the Moon from Earth is roughly 1/2 a degree.

What is the earth from a geo orbit? anyone know?

Joe WB9SBD
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