Soyuz 2.1b/Fregat | EKS 4 (Tundra 4) (Kosmos 2546)
Status: Success | Launched: May 22, 2020 07:31 UTC
Launch Provider & Rocket
- Provider: Russian Space Forces (Government)
- Rocket: Soyuz 2.1b Fregat — Soyuz family
Mission
The Tundra or EKS (meaning Unified Space System) series of satellites is the next generation of Russian early warning satellites.
- Type: Government/Top Secret
- Orbit: Medium Earth Orbit (MEO)
Launch Site
- Pad: 43/4 (43R)
- Location: Plesetsk Cosmodrome, Russian Federation
- View on map
Launch data sourced automatically from the Launch Library 2 API. Last refreshed: 2026-08-22T21:02:10.804714+00:00.