The US Space Force has successfully launched an experimental satellite, National Technology Satellite-3 (NTS-3), marking the beginning of a year-long demonstration program aimed at bringing new technology to the GPS mission and broader positioning, navigation and timing enterprise. Launched from Cape Canaveral Space Force Station in Florida, NTS-3 is the first national security flight for United Launch Alliance’s Vulcan rocket.
Developed by L3Harris as part of an Air Force Research Lab and Space Systems Command project, NTS-3 was designed to test new positioning, navigation and timing (PNT) signals and payloads that could be integrated into future GPS satellites. The satellite has undergone extended lab testing, allowing the development team to add new signals after its initial delivery.
Once in orbit, NTS-3 will conduct over 100 tests exploring various technologies, including simultaneous signal broadcast and receipt, autonomous operations, and anti-spoofing signals. These experiments will be conducted both in a laboratory setting and in field environments to replicate real-world conditions.
The Space Force plans to integrate the technology proven by NTS-3 into its GPS production lines, with initial plans to implement it on the new GPS IIIF variant. However, launch delays have reduced the available margin for design changes, leaving limited room for additional capabilities. The program’s success will determine whether NTS-3-proven technologies can be incorporated into future GPS satellites.
The Space Force’s Resilient GPS program is also exploring a constellation of small, lightweight spacecraft to augment the existing satellite fleet. This effort may benefit from NTS-3 technology, and collaboration with the Space Development Agency, Space Systems Command, and other organizations will play a crucial role in identifying potential applications for the experimental satellite.
Source: https://www.defensenews.com/space/2025/08/13/space-force-launches-satellite-to-explore-new-gps-technology