Intelsat 503

Intelsat V F-3, then named Intelsat 503, was a communications satellite operated by COMSAT. Launched on 15 December 1981, it was the third of fifteen Intelsat V satellites to be launched. The Intelsat V series was constructed by Ford Aerospace, based on the Intelsat V satellite bus. Intelsat V F-3 was part of an advanced series of satellites designed to provide greater telecommunications capacity for Intelsat's global network.