Thor Delta C — mission imagery
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Explorer 21

Thor Delta CUnited States Air ForceSpace Launch Complex 17A
Sunday, October 4, 1964 · 03:45 AM UTCAdd to Calendar

This mission is complete.

Vehicle

Thor Delta C

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Vehicle details are not available yet.

HeightN/A
LEO PayloadN/A
Launches1078
Successes972

Provider

United States Air Force

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Provider details are not available yet.

Mission Brief

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.

PayloadExplorer 21
OrbitElliptical Orbit
CustomerUnited States Air Force
Stages0
PadSpace Launch Complex 17A, Cape Canaveral SFS, FL, USA

Mission Timeline

14 / 14100%
Site lock

Launch Site

Space Launch Complex 17A, Cape Canaveral SFS, FL, USA

LAUNCH SITE
28.447°N, 80.565°W

Schedule History

No delays or schedule changes recorded.

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