Re: How many satellites are in geosynchronous orbit by now?


Ed Kyle wrote:
> Soren Kuula wrote:
> > Does anybody know an estimate how many satellites are in geosynchronous
> > orbit? How many of them are operational?
> >
> > Are there any accounts of collisions among them? I know that thwy won't
> > collide if all in the same orbit, but there are imperfections, right?
> >
> > Soren
>
> You should be able to find the answer in these data:
>
> "http://www.planet4589.org/space/book/LOGS/logindex/geo.html";
>
> - Ed Kyle

Note that not all of the objects listed in near GEO are satellites.
There are also quite a few upper stages that were used to propel
some satellites. Most commercial satellites now have built-in
apogee kick propulsion, but earlier sats and many modern Russian
and U.S. military sats were kicked with upper stages like Blok DM,
IUS, Centaur, and the like that separated from their payloads and
remained in near GEO - though usually moved some distance away
by a final post-separation maneuver.

- Ed Kyle

.

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