The Navigation Technology Satellite 2 (NTS-2) was launched in 1977 to test new navigation techniques. The two cesium atomic clocks on board helped to show that satellite navigation based on precise timing was possible.
Caption:
This illustration shows the important components of the NTS-2 satellite.
Type: Illustration
Image Date: 2012
Credit: National Air and Space Museum, Smithsonian Institution.
Origin: National Air and Space Museum, Smithsonian Institution.
