[amsat-bb] Re: ISS Keplerian elements

Gordon JC Pearce MM3YEQ gordonjcp at gjcp.net
Fri Jan 16 18:54:46 PST 2009

On Fri, 2009-01-16 at 13:40 -0600, Ransom, Kenneth G. (JSC-OC)[BAR]
> When the ISS does a reboost (like it did on Jan 14), it is usually a
> significant change in orbit. The predicts seem to take about 3 days to
> sync back up (even though they start getting closer about 24 hours
> later).
> Just another one of the challenges of the ISS, they make changes quite a
> bit so you have to be on top of the daily activity schedule. 

I see it as one of the advantages of using the Armstrong method for
positioning your antenna ;-)  If you point the little end at the part of
the sky where the bird is loudest, it's in the right place.


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