Explorer 21
Thor Delta C
United States Air Force
Launch Status
SuccessMission
Explorer 21
Type: Astrophysics
Explorer 21 (IMP 2) was a solar-cell and chemical-battery powered spacecraft instrumented for interplanetary and distant magnetospheric studies of energetic particles, cosmic rays, magnetic fields, and plasmas.
Trajectory
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Location
Space Launch Complex 17A
Cape Canaveral, FL, USA
902 rockets have launched from Cape Canaveral, FL, USA.
Agency
United States Air Force – USAF
- Type: Government
- Abbreviation: USAF
- Administration: Commander-in-Chief: President of the US
- Founded: 1947
- Country: USA
The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal Corps, the USAF was established as a separate branch of the United States Armed Forces in 1947 with the enactment of the National Security Act of 1947.
