Civilian GPS isn't that accurate at the best of times and needs to be robust for...

		ZeroGravitas on March 9, 2010 \| parent \| context \| favorite \| on: Chile Earthquake Moved Entire City 10 Feet to the ... Civilian GPS isn't that accurate at the best of times and needs to be robust for times when it can't get clear views of the sky. A 10ft shift shouldn't trip it up. Wikipedia says 50-15 feet of inaccuracy: http://en.wikipedia.org/wiki/Global_Positioning_System#Error...