As a very coarse number, 5µs is 1500 meters of radio travel. If (and it isn't ve...

		ted_dunning 25 days ago \| parent \| context \| favorite \| on: NIST was 5 μs off UTC after last week's power cut As a very coarse number, 5µs is 1500 meters of radio travel. If (and it isn't very conceivable) GPS satellites were to get 5µs out of whack, we would be back to Loran-C levels of accuracy for navigation.