page_title: TDRS-3
hierarchical_section_title: TDRS-3
caption_attribution_description: English: The TDRS-C/IUS stack is raised into position for deployment aboard Discovery.
context_page_description: TDRS-3, known before launch as TDRS-C, is an American communications satellite, of first generation, which is operated by NASA as part of the Tracking and Data Relay Satellite System. It was constructed by TRW, and is based on a custom satellite bus which was used for all seven first generation TDRS satellites.
context_section_description: TDRS-3, known before launch as TDRS-C, is an American communications satellite, of first generation, which is operated by NASA as part of the Tracking and Data Relay Satellite System. It was constructed by TRW, and is based on a custom satellite bus which was used for all seven first generation TDRS satellites.
caption: TDRS-C aboard Discovery
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