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Comment by ncmncm | Hacker News Reader
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ncmncm
·
2015. So we need an update on how they are doing.
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sherilm
·
https://cimsec.org/options-stars-automated-celestial-navigat...
sherilm
·
This one's behind a paywall from 2021.
https://www.popularmechanics.com/military/research/a36078957...
Reply on news.ycombinator.com