Pioneer 4
Spacecraft
>
Pioneer 4 was an American spin-stabilized uncrewed spacecraft launched as part of the Pioneer program on a lunar flyby trajectory and into a heliocentric orbit making it the first probe of the United States to escape from the Earth's gravity. Wikipedia
Cost: 150 million USD
Manufacturers: Jet Propulsion Laboratory and Space Technology Laboratories, Inc.
Launch date: March 3, 1959
Max speed: 4,493 mph
Launch mass: 6.08 kg
Mission duration: 3 days
Reference system: Heliocentric