Recorded mission
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Russian Space Forces
Soyuz 2.1b/Fregat | EKS 4 (Tundra 4) (Kosmos 2546)
Recorded mission coverage
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Mission brief
The flight at a glance.
The Tundra or EKS (meaning Unified Space System) series of satellites is the next generation of Russian early warning satellites.
Open the full mission →Published flight sequence
Know what comes next.
Planned timings relative to the target. These steps do not indicate live progress.
A flight sequence has not been published for this mission.