[amsat-bb] Re: Amateur Satellites Close Conjuctions

Joe Fitzgerald jfitzgerald at alum.wpi.edu
Tue Jan 26 06:08:56 PST 2010

> Hello,
> Given the recent close conjunction between Compass-1 and Sich 1,
> I was curious how common such encounters were.   Using
> SOCRATES on the celestrak site, http://celestrak.com/SOCRATES/,
> it looks like they are fairly common.

Take those forecasts with a grain of salt since they are based on TLE's
with limited accuracy.  On the day Iridium 33 and Cosmos 2251 collided,
SOCRATES forecast a couple other conjunctions closer.  SOCRATES predicted
a miss of 584 m.

Fortunately for us, there is a lot of space in space.

-Joe KM1P

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