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Date: Thu, 15 Jan 2026 18:29:12 -0700 (MST)
From: David Lang <david@lang.hm>
To: Ulrich Speidel <u.speidel@auckland.ac.nz>
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Ulrich Speidel wrote:

> The other issue is orbits: Starlink now occupies an increasing amount of 
> space real estate in the LEO Goldilocks zone. Go higher and you pay in terms 
> of latency, and it also becomes harder to direct your beams into small spots 
> on the ground. Plus you need more transmitter power or antenna gain to get to 
> the EPFD limit. Go lower and you'll pay in terms of satellite lifetime - not 
> ideal unless you have rapid launch capability.

Starlink recently announce it was lowering the altitude of about half their 
satellites.

David Lang