Mariner 1
Spacecraft
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Mariner 1, built to conduct the first American planetary flyby of Venus, was the first spacecraft of NASA's interplanetary Mariner program. Wikipedia
Launch date: July 22, 1962 at 5:21 AM GMT-4
Cost: 18.5 million USD (1962)
Manufacturer: Jet Propulsion Laboratory
Launch mass: 202.8 kilograms (447 lb)
Mission duration: 294.5 seconds; Failed to orbit
Rocket: Atlas LV-3 Agena-B