List of GPS satellites - Wikipedia
Air Force upgrades GPS constellation > Air Force Space Command (Archived) > Article Display
Longest Operating GPS System Satellite Reaches 20th Year in Orbit
GPS.gov: Space Segment
GNSS | GEOG 862: GPS and GNSS for Geospatial Professionals
![The GPS Satellite Constellation [37] | Download Scientific Diagram](https://www.researchgate.net/profile/Mohamed-Tamazin/publication/304025457/figure/fig1/AS:614382782410777@1523491678985/2-The-GPS-Satellite-Constellation-37.png "The GPS Satellite Constellation [37] | Download Scientific Diagram")
The GPS Satellite Constellation [37] | Download Scientific Diagram
Constellation Reconfiguration | The Aerospace Corporation
9871-2324-MTDC: Resource Applications of GPS Technology
Satellite constellation - Wikipedia
Why are the GPS constellation satellites in such a high orbit? - Space Exploration Stack Exchange
What are the various GNSS systems?
GPS Space Segment - Navipedia
How GPS works, and how to make the most of it : Global Nerdy
Russia Threatens to Destroy U.S. GPS Satellite Constellation – Parabolic Arc
Reader on GPS positioning
Satellite Navigation with GPS
Global Positioning System
How Do Satellite Trackers For Vehicles Work?
Navstar: GPS Satellite Network | Space
Satellite Constellation Risk Assessment | The Aerospace Corporation
FCC approval of Europe's Galileo satellite signals may give your phone's GPS a boost | TechCrunch
Modern civilization would be lost without GPS - SpaceNews
The Global Positioning System: Global Positioning Tutorial
