pysatellites(1) on Linux
The text 20a4e2a80431, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.
simulates the launching of satellites
Flags it lists
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--help -
-h