Explorer 3
Artificial satellite
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Explorer 3 was an American artificial satellite launched into medium Earth orbit in 1958. It was the second successful launch in the Explorer program, and was nearly identical to the first U.S. satellite Explorer 1 in its design and mission. Wikipedia
Launch date: March 26, 1958 at 12:31 PM GMT-5
Manufacturer: Jet Propulsion Laboratory
Spacecraft: Explorer III
Decay date: 28 June 1958
Dimensions: 203 cm (80 in) length; 15.2 cm (6.0 in) diameter
Launch mass: 14.1 kg (31 lb)
Mission duration: 93 days (achieved); 120 days (planned)
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