Aircraft Systems: GPS – Learn to Fly Blog - ASA (Aviation Supplies & Academics, Inc.)
GPS - Global Positioning System satellite — Astronoo
List of GPS satellites - Wikipedia
GPS Constellation | Time and Navigation
Navstar: GPS Satellite Network | Space
Global Positioning System
Feb. 14, 1989: GPS Enters Orbit | WIRED
Orbit Keys - Orbit USA
Comparison of GPS, GLONASS, Galileo and COMPASS (medium Earth orbit satellites) orbits with International Space Station, Hubble Space Telescope, geostationary and graveyard orbits, and the nominal size of the Earth. : r/dataisbeautiful
GPS.gov: Space Segment
NASA Engineers Win ION Burka Award for GPS Antenna Characterization Experiment - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design
JAXA and NEC demonstrate Japan's First GPS Navigation Technology at Geostationary Orbit: Press Releases | NEC
Global Positioning System - Wikipedia
Investigate Satellite Orbit Tracks And Coverage (Including GPS Satellite Systems) With JSatTrak
Figure 1 | Onboard and Real-Time Artificial Satellite Orbit Determination Using GPS