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User Name | Thread Name | Subject | Posted |
DaveRo | BS: Leap Seconds, and GPS longtitude (49) | RE: BS: Leap Seconds, and GPS longtitude | 23 Dec 16 |
DMcG wrote: ... the map itself is accurate relative to landmarks but the whole island may be several miles away from its true latitude and longitudeThis effect is alive and well in these days of electronic charts: |