NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Errors of GPS satellites as seen in Annapolis
From: Tony S
Date: 2000 Apr 25, 2:21 AM
From: Tony S
Date: 2000 Apr 25, 2:21 AM
Excellent sample demonstration! ------------------------------ Precise Positioning Service is for the DOD only. Only Standard Positioning Service (SPS) is available to the public. With SPS, 100 meter accuracy is observed 95% of the time. The following plot shows SPS information gathered at USNA over a 6 hour period. Notice the brief 4 minute excursion over 1/2 mile at 14 knots for our fixed building! http://web.usna.navy.mil/~bruninga/errorplot.html == Enjoy other links as well. Tony
