Proton | Mars-4
Status: Success | Launched: Jul 21, 1973 19:30 UTC
Launch Provider & Rocket
- Provider: Soviet Space Program (Government)
- Rocket: Proton / UR-500 K/D — Proton / UR-500 family
Mission
Mars orbiter
- Type: Robotic Exploration
- Orbit: Mars Orbit (Mars)
Launch Site
- Pad: 81/23 (81L)
- Location: Baikonur Cosmodrome, Republic of Kazakhstan
- View on map
Launch data sourced automatically from the Launch Library 2 API. Last refreshed: 2026-10-07T01:00:56.820087+00:00.