 51I-33-007 - STS-51I - Syncom-IV communication satellite deploys from payload bay - U.S. National Archives Public Domain Imagenlat: -0.8nlon: 8.851I-33-024 - STS-51I - Syncom-IV communication satellite deploys from payload bay51I-33-033 - STS-51I - Syncom-IV communication satellite deploys from payload bay51I-33-008 - STS-51I - Syncom-IV communication satellite deploys from payload bay 