Newest GPS satellite goes into service – Spaceflight Now
Benefits coming from GPS III constellation - GPS World
Why are the GPS constellation satellites in such a high orbit? - Space Exploration Stack Exchange
Global Positioning System - Wikipedia
UK: GPS satellites could warn of incoming tsunamis | PreventionWeb
GPS Satellites | Lockheed Martin
Newest GPS satellite goes active – Spaceflight Now
List of GPS satellites - Wikipedia
GPS.gov: Space Segment
Feb. 14, 1989: GPS Enters Orbit | WIRED
The Sky's The Limit - The Global Positioning System (GPS)101 <<Safer,Smarter,Confident Pilots>> #SmartPilotLikeToLearn The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States ...
GPS Satellites | Lockheed Martin
Latest Global Positioning System satellite goes live – Spaceflight Now
GPS | Definition, Types, Uses, & Facts | Britannica
GPS Constellation | Time and Navigation
Space: Global Positioning System (GPS) Constellation - YouTube
2 SOPS says goodbye to GPS satellite > Schriever Space Force Base (Archived) > Article Display
History of GPS satellites and commercial GPS tracking | Geotab
The Global Positioning System: Global Positioning Tutorial
GPS Block IIF – Spacecraft & Satellites
Navstar: GPS Satellite Network | Space
