Third Prototype Satellite for GPS Constellation

Testing the third prototype GPS satellite before launch, 1978. The program, called NAVSTAR, would not have full global coverage until 24 satellites were working in the system.

Caption:
Engineers working on the third prototype GPS satellite.
Type: Photograph
Image Date: 1978
Credit: The Aerospace Corporation
Origin: The Aerospace Corporation.
27525-7904
Innovations
Navigation Methods
 
Engineers working on the third prototype GPS satellite.