July 10, 2024 Lockheed Martin receives Laser Retroflector Arrays for GPS III SV9, SV10 07/10/2024 In partnership with NASA and the National Geospatial-Intelligence Agency, the U.S. Space Force GPS III Program Office has delivered two laser retroflector arrays to Lockheed Martin. On May 6, the LRAs were delivered under a directed program to rapidly integrate hosted payloads on GPS satellites ahead of launch call up. The LRAs will be installed onto two GPS III satellites, SV9 and SV10, in preparation for a 2025 launch. The addition of the LRA hosted payload onto GPS satellites marks an expansion of NASA’s Space Geodesy Program space instrument network. The GPS III LRAs will allow NASA to make precise range measurements to the sub-centimeter level using the Satellite Laser Ranging technique, enabling accurate determination of the Earth’s center. The NASA Space Geodesy Program and NGA will use collected SLR data from the GPS III LRAs to maintain a globally available, high quality terrestrial reference frame. Read more on spaceforce.mil