EKS 4 (Tundra 4) (Kosmos 2546)

Soyuz-2.1b/Fregat launched from Plesetsk carrying Kosmos 2546, the fourth EKS "Tundra" missile early-warning satellite for Russia's Aerospace Forces, part of a network that tracks missile launches alongside ground-based radar.

Outcome

Success

Orbit

MEO

Medium Earth orbit

Payload to orbit

2.6 T

Flight

19th

of 26 Soyuz 2.1b Fregat flights

Date and time

22 May 2020, 07:31 UTC

Rocket

Soyuz 2.1b Fregat

Builder

Progress RSC

Launch site

43/4 (43R), Plesetsk Cosmodrome, Russian Federation

Payload

Government/Top Secret

International designator

2020-031

Launches in 2020

34th of 114

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