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by wtallis
5574 days ago
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According to http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System#C... normal GPS systems will be accurate to within 2.5 m 95% of the time. Better accuracy can be achieved using differential GPS systems and things like WAAS, but they rely on ground-based systems and thus might not be a good way to measure how much the ground shifted. |
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