Earth observation radar satellite
One-off Atlas variant mating the last Agena stage flown to a refurbished Atlas F missile for the launch of Seasat.
Convair, previously Consolidated Vultee, was an American aircraft manufacturing company that later expanded into rockets and spacecraft. The company was formed in 1943 by the merger of Consolidated Aircraft and Vultee Aircraft. In 1953 it was purchased by General Dynamics, and operated as their Convair Division for most of its corporate history.WIKI