Re: More GEO questions II

From: Patrick McNally (pcmcnally@hotmail.com)
Date: Fri Oct 12 2001 - 14:53:53 EDT

• Next message: BahlsD@aol.com: "Re: Decay over Southern France ??"

```Note that G varies with the square of distance.

26,000/4,000 = 6.5
6.5*6.5= 42.25

G at synchonous altitude is 2.3% of 32.2 ft/sec/sec

A satellite is always falling.  As it moves sideways it keeps missing the
earth.  Above synchonous altitude, a satellite will be moving backward
compared with the earth.

Pat McNally
47.66 -122.32

>A couple more GEO questions:
>
>I made a spreadsheet out of the formulas provided by you all (thank you)
>and
>played with the altitudes.
>Obviously for a satellite to be geostationary it's speed decreases as it's
>altitude decreases, which will cause crash and burn at altitudes less than
>22,300 miles (13640km).
>It was Arthur C. Clark who figured out the GEO altitude wasn't it?  How did
>he do it?
>My spreadsheet tells me at an altitude of 60,000 miles (37200km) a
>satellite
>needs to cruise at 16,745 mph (10382kph) to remain geostationary. What
>would
>happen to this orbit?  Is it possible to remain geostationary out there?  I
>realize it would be very inefficient, but is it possible?
>
>Thanks,
>Bill
>
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