Northrop OV2-5 Space Satellite
The OV2-5 was designed for solar, magnetic and cosmic ray research in space. On Sept. 28, 1968, it was boosted from the ground by a Titan III launch vehicle into a circular equatorial orbit at an altitude of 22,000 miles above the Earth. It was designed with an operating life in space of at least one year. (U.S. Air Force photo)