Thor Agena A | Discoverer 4
Status: Failure | Launched: Jun 25, 1959 22:47 UTC
Launch Provider & Rocket
- Provider: United States Air Force (Government)
- Rocket: Thor Agena A — Thor family
Mission
Discoverer 4 was the fourth in a series of reconnaissance satellites, however, it failed to reach orbit when the Agena engine underperformed and failed to place the capsule into orbit.
- Type: Government/Top Secret
- Orbit: Polar Orbit (PO)
Launch Site
- Pad: Space Launch Complex 1E
- Location: Vandenberg SFB, CA, USA
- View on map
Launch data sourced automatically from the Launch Library 2 API. Last refreshed: 2026-10-07T01:00:56.820087+00:00.