As most of you know, the US government has relaxed the restrictions on
the GPS system. Supposedly the accuracy has improved from 10 meters to 1
meter. My question is, do the actual GPS units in use permit this
accuracy? At the equator, one degree is 111,308 meters in length.
One-meter is thus
You have been given the wrong information. Before SA was turned off, the
official accuracy was 100 metres (95%) but with 27-28 satellites, typically
accuracy under good conditions was 50-60 metres (95%). Turning off SA
improved accuracy from 5 to 10 times, so at most to just under 10 metres
At 10:35 PM 5/11/00 +0200, you wrote:
Next week we have our spring meeting of the Commission des Cadrans
Solaires in Paris. And some people dealing with dials restoration could be
interested in restoring the dial you mention. So could you, please, send me
the references of that dial (the
