Juno-I | Explorer 4
Status: Success | Launched: Jul 26, 1958 15:00 UTC
Launch Provider & Rocket
- Provider: Army Ballistic Missile Agency (Government)
- Rocket: Juno-I — Redstone family
Mission
An American satellite in order to study the Van Allen radiation belts and the effects of nuclear explosions upon these belts.
- Type: Earth Science
- Orbit: Medium Earth Orbit (MEO)
Launch Site
- Pad: Launch Complex 5
- Location: Cape Canaveral SFS, FL, USA
- View on map
Launch data sourced automatically from the Launch Library 2 API. Last refreshed: 2026-10-06T21:02:13.006858+00:00.