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A comment on NIST was 5 μs off UTC after last week's power cut. Parent comment

Re:NIST was 5 μs off UTC after last week's power cut by andrewxdiamond on Monday December 22, 2025 @02:14PM (#46357660)
We use nanosecond precision driven by GPS clocks. That timestamp in conjunction with star tracker systems gives us reliable positioning information for orbital entities.

https://en.wikipedia.org/wiki/Star_tracker

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