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Launch Detail
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Launch detail
US Army • SM-65B Atlas • Launch Complex 11 (FL)

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SCORE or Signal Communications by Orbiting RElay was the world first purpose built communications satellite. It provided a second test of a communications relay system after the first being provided by Pioneer 1.
Last refreshed: Jun 14, 2023, 1:42 PM EDT. T-Minus Zero keeps this as the canonical launch record and reconciles schedule, mission, payload, media, and provider signals when those records are available.
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SCORE or Signal Communications by Orbiting RElay was the world first purpose built communications satellite. It provided a second test of a communications relay system after the first being provided by Pioneer 1.
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SCORE or Signal Communications by Orbiting RElay was the world first purpose built communications satellite. It provided a second test of a communications relay system after the first being provided by Pioneer 1.
The Convair SM-65B Atlas, or Atlas B, also designated X-12 was a prototype of the Atlas missile. First flown on 19 July 1958, the Atlas B was the first version of the Atlas rocket to use the stage and a half design with an operational sustainer engine and jettisonable rocket booster section. Unlike later Atlas models, the Atlas B used explosive bolts to jettison the booster section.
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