Global Positioning System Data & Information

maintained by the

United States Naval Observatory

Timing Data for Individual GPS Satellites

Timing Data for Entire GPS Constellation

Notice Advisories to NAVSTAR Users (NANUs)

USNO STel 502 GPS Receiver Schedules

General GPS Information

Links to Other GPS Web Sites

Survey: Please give us your comments regarding your use of GPS timing and common view data.

US Naval Observatory Home Page
What Time Is It? USNO Time Service Home Page
GPS Home Page at USNO

Send questions or comments to:
Time Service Dept., U.S. Naval Observatory, Washington, DC