Page Moved
We moved this page to the GPS Adventures section of GPS.gov.
Click here if you are not automatically redirected within a few seconds.
GPS.GOV
Official U.S. Government information about the
Global Positioning System (GPS) and related topics
Skip menu
Official U.S. Government information about theGlobal Positioning System (GPS) and related topics
This page was updated on November 16, 2011. This U.S. government website has been developed by the National Coordination Office for Space-Based Positioning, Navigation, and Timing and the Civil GPS Service Interface Committee. It is hosted by the Coast Guard Navigation Center. Privacy policy. Contact webmaster.