Thor Delta C | Explorer 28
Status: Success | Launched: May 29, 1965 12:00 UTC
Launch Provider & Rocket
- Provider: United States Air Force (Government)
- Rocket: Thor Delta C — Thor family
Mission
Explorer 28 (IMP 3) 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
- View on map
Launch data sourced automatically from the Launch Library 2 API. Last refreshed: 2026-10-07T01:00:56.820087+00:00.