Thor Delta C | Explorer 18

Status: Success | Launched: Nov 27, 1963 02:30 UTC

Launch Provider & Rocket

Provider: United States Air Force (Government)
Rocket: Thor Delta C — Thor family

Mission

Explorer 18 (IMP 1, Interplanetary Monitoring Platform) 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.

Type: Astrophysics
Orbit: Elliptical Orbit (Elliptical)

Launch Site

Pad: Space Launch Complex 17B
Location: Cape Canaveral SFS, FL, USA
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Launch data sourced automatically from the Launch Library 2 API. Last refreshed: 2026-10-07T01:00:56.820087+00:00.