GPS III Launch Will Provide Global M-Code - Breaking Defense
A Condensed History of the Global Positioning System (GPS)
GPS Block III - Wikipedia
Satellite Blocks | GEOG 862: GPS and GNSS for Geospatial Professionals
GPS Block IIF - Wikipedia
Brief History of GPS | The Aerospace Corporation
Satellite Delivered for Space Force's First GPS III Launch | Air & Space Forces Magazine
First GPS NAVSTAR Satellite Goes on Display > U.S. Naval Research Laboratory > NRL News
Brief History of GPS | The Aerospace Corporation
GPS: From launch to everyday life - BBC News
Brief History of GPS | The Aerospace Corporation
US Airforce declares that the first GPS III is "available for launch" - Geospatial World
GPS (Navstar) - Gunter's Space Page
US Air Force set to launch 1st next-generation GPS satellite Tuesday
SpaceX launches Air Force's first next-gen GPS III satellite
First Lockheed Martin-Built GPS III Satellite Encapsulated for Dec. 18 Launch - Dec 11, 2018
Feb. 14, 1989: GPS Enters Orbit | WIRED
Oldest GPS satellite being prepared for disposal > Air Force > Article Display
Brief History of GPS | The Aerospace Corporation
History of GPS satellites and commercial GPS tracking | Geotab
Spaceflight Now | Delta Launch Report | New GPS signal for civil users being put to the test
Japan puts successor to aging GPS-improving satellite into orbit
First GPS III satellite successfully launched > Air Force Space Command (Archived) > Article Display
