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Explorer A
Part of Explorer
Explorer 1
Explorer 1
Explorer 1 / Explorer A
Credit: NASA
American earth magnetosphere satellite. Discovered Van Allen radiation belts. Spacecraft engaged in research and exploration of the upper atmosphere or outer space.

Status: Operational 1958. First Launch: 1958-02-01. Last Launch: 1958-03-26. Number: 3 . Gross mass: 5.00 kg (11.00 lb).


More at: Explorer-1.

Family: Earth, Magnetosphere sat. Country: USA. Launch Vehicles: Redstone, Jupiter C. Projects: Explorer. Launch Sites: Cape Canaveral, Cape Canaveral LC5, Cape Canaveral LC26A. Agency: US Army. Bibliography: 126, 17, 2, 483, 6, 86, 12375.
Photo Gallery

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Pickering, Van Allen, and Von Braun hold a model of Explorer 1 in triumph at a post-flight press conference.
Credit: NASA


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Lift-off of Explorer 1
Credit: NASA


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Jupiter C / Explorer 1 mission
Credit: NASA


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Explorer 1 cutaway
Credit: NASA


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Explorer 1 being mounted on the pad
Credit: NASA


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Explorer 1 atop the Jupiter-C on the pad
Credit: NASA


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The launch room during the Explorer 1 launch
Credit: NASA


Explorer 1Explorer 1
Credit: Manufacturer Image



1954 June 25 - . LV Family: Redstone. Launch Vehicle: Jupiter C.
1954 August 15 - . LV Family: Redstone. Launch Vehicle: Jupiter C.
1955 August 24 - . LV Family: Redstone. Launch Vehicle: Jupiter C.
1957 October 5 - . LV Family: Redstone. Launch Vehicle: Jupiter C.
1958 February 1 - . 03:47 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC26A. LV Family: Redstone. Launch Vehicle: Jupiter C.
1958 March 5 - . 18:27 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC26A. LV Family: Redstone. Launch Vehicle: Jupiter C. FAILURE: Fourth Stage failed to ignite.. Failed Stage: 4.
1958 March 26 - . 17:38 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC5. LV Family: Redstone. Launch Vehicle: Jupiter C.

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