2026-08-29 01:54 UTC
Replies (4)
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@cmnybo@discuss.tchncs.de 2026-08-29 02:39
That’s comparable to what a skilled navigator can do with a sextant and chronometer. That’s more than enough accuracy to cross the ocean and get close enough to the port that you can see it.
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@Deebster@infosec.pub 2026-08-29 02:16
The only thing I can think is that they’re comparing with a single system (e.g. GPS or BeiDou), even though GNSS receivers will combine all four systems to get very high accuracy (a few metres).
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@Gsus4@mander.xyz 2026-08-29 02:10
this article is better written: science.report/…/quantum-gravimeter-demonstrates-… it maintained bounded position accuracy within 1 nautical mile over an 83-kilometer trajectory. This performance, achieved without access to satellite navigation, represents a more than tenfold improvement over standard navigation-grade inertial backup systems under similar conditions.
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@hasnep@lemmy.ml 2026-08-29 06:22
If I were in the middle of the ocean I couldn’t find my location within 100 nautical miles without GPS so I’m pretty impressed