List of satellites
| Name | SATCAT | Launch date (UTC) | Launch vehicle | Launch site | Orbital apsis | Inclination | Period (min) | Status |
|---|---|---|---|---|---|---|---|---|
| NTS-1 (Timation 3) [4] [5] | 7369 | 14 July 1974 | Atlas-F/PTS | Vandenberg, SLC-3W | Success | |||
| NTS-2 (Timation 4) [6] | 10091 | 23 June 1977 | Atlas-F/SGS-1 | Vandenberg, SLC-3W | Success | |||
| NTS-3 [7] | 65160 | 13 August 2025 00:56 UTC | Vulcan Centaur VC4S | Cape Canaveral, SLC-41 | Success | |||
Navigation Technology Satellite-1 (NTS-1)
The Navigation Technology Satellite-1 (NTS-1) also known as Timation-3 or P73-3, was a U.S. Navy navigational technology satellite launched on July 14, 1974, from Vandenberg Air Force Base, California, using an Atlas F/PTS rocket. It was a pivotal part of the TIMATION program, a precursor to the modern Global Positioning System (GPS), aimed at testing technologies for precise time-based navigation. [8]
Navigation Technology Satellite-2 (NTS-2)
The Navigation Technology Satellite-2 (NTS-2), also known as Timation-4 or P76-4, was a U.S. Navy Technology demonstration satellite launched on June 23, 1977, from Vandenberg Air Force Base, California, using an Atlas F/SGS-1 rocket. It was the second satellite in the Navigation Technology Satellite series, marking a critical step in the development of the modern Global Positioning System (GPS). [9]
NTS-2 Satellite Before Launch
Navigation Technology Satellite-3 (NTS-3)
The Navigation Technology Satellite-3 (NTS-3) is a satellite to demonstrate new technologies related to Satellite Navigation. NTS-3 will demonstrate resilient PNT in a Multi-Layer space architecture. [10]
NTS-3 is based on Northrop Grumman ESPAStar-D Satellite Bus. The Satellite is launched on a Vulcan Centaur VC4S rocket as part of USSF-106 Mission from Cape Canaveral SLC-41 was launched on 13 August 2025 at 00:56 UTC. [11] [12] [13]
NTS-3 Spacecraft During Testing
Launch of USSF-106 Misson carrying NTS-3 Spacecraft
