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Explorer 12 EPE-A S-3 energetic-particles and magnetosphere spacecraft family

Explorer 12 was a NASA energetic-particles satellite launched August 16, 1961 to study Earth’s magnetic environment. Its particle and magnetic-field instruments observed energetic particles, solar plasma, geomagnetic storms, and the boundary between the magnetosphere and solar wind.

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Identity

Aliases
Explorer 12Explorer XIIEPE-AS-3Explorer 12 spacecraft
Family Name
Explorer 12
Full Name
Explorer 12 EPE-A S-3 energetic-particles and magnetosphere spacecraft family
Roles
orbiterobservatoryresearch
Status
retired
Type
spacecraft

Details

Description
Explorer 12 was a NASA energetic-particles satellite launched August 16, 1961 to study Earth’s magnetic environment. Its particle and magnetic-field instruments observed energetic particles, solar plasma, geomagnetic storms, and the boundary between the magnetosphere and solar wind.
First Flight Year
1,961
Last Flight Year
1,961

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Creation Time
August 13, 2026 at 12:58:33 UTC
Updated Time
August 13, 2026 at 12:58:33 UTC
Explorer 12 EPE-A S-3 energetic-particles and magnetosphere spacecraft family - AeroVia