History Of GPS timeline | Timetoast timelines
First GPS IIF satellite on station > Air Force > Article Display
GPS IIR-1 - Wikipedia
GPS Block IIF - Wikipedia
GPS (Navstar) - Gunter's Space Page
Spaceflight Now | Delta Launch Report | First-of-its-kind satellite for GPS launched into space
Lockheed Martin GPS satellite first of new generation
OPS 5111 - Wikipedia
What Causes GPS Signal Loss on Satellites like Swarm? - Eos
Next-generation of GPS satellites are headed to space | AP News
U.S. Air Force declares first GPS III satellite 'Available for Launch' - SpaceFlight Insider
UK: GPS satellites could warn of incoming tsunamis | PreventionWeb
Brief History of GPS | The Aerospace Corporation
Brief History of GPS | The Aerospace Corporation
Brief History of GPS | The Aerospace Corporation
Brief History of GPS | The Aerospace Corporation
The evolution of GPS satellites and their use today - GPS World
NASA History Office on Twitter: "#OTD 1978 the first generation Global Positioning System (GPS) satellite, Navstar 1, launched from Vandenberg Air Force Base, California. https://t.co/jmigNngbpz" / Twitter
Oldest GPS satellite being prepared for disposal > Air Force > Article Display
First GPS III satellite encapsulated for launch
Satellite Blocks | GEOG 862: GPS and GNSS for Geospatial Professionals
