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Tundra (EKS, 14F142)

Tundra (?) [TsNII Kometa]

The Tundra or EKS (Edinaya Kosmicheskaya Sistema) series of satellites is the next generation of Russian early warning satellites to replace the US-K and US-KMO early warning satellites of the Oko-1 system. The new early warning system is called Kupol.

The development of the EKS started in 2000. The Russian Ministry of Defence awarded in 2007 a contract for the EKS system to RKK Energiya with a first test launch planned in 2009. Several problems, changing requirements and a court case led to long delays, postponing the first mission to the end of 2014.

Reportedly the Tundra satellites carry also a secure emergency communications payload to be used in case of a nuclear war.

They are launched on Soyuz-2-1b Fregat boosters into Molniya-orbits, inclined highly elliptical 12 h orbits. A geostationary version is also planned.

The first Tundra satellite was launched in the last quarter of 2015 on a Soyuz-2-1b Fregat booster. Until 2020, six satellites were planned to be orbited. At then end of 2020, four were on orbit.

Nation: Russia
Type / Application: Early warning, communication
Operator:
Contractors: RKK Energiya (bus); TsNII Kometa (payload)
Equipment:
Configuration: USP Bus
Propulsion:
Power: Deployable solar arrays, batteries
Lifetime:
Mass:
Orbit: 1626 km × 38552 km, 63.37° (#1)
Satellite COSPAR Date LS Launch Vehicle Remarks
Kosmos 2510 (Tundra 11L) 2015-066A 17.11.2015 Pl LC-43/4 Soyuz-2-1b Fregat
Kosmos 2518 (Tundra 12L) 2017-027A 25.05.2017 Pl LC-43/4 Soyuz-2-1b Fregat
Kosmos 2541 (Tundra 13L) 2019-065A 26.09.2019 Pl LC-43/4 Soyuz-2-1b Fregat
Kosmos 2546 (Tundra 14L) 2020-031A 22.05.2020 Pl LC-43/4 Soyuz-2-1b Fregat
Kosmos 2xxx (Tundra 15L) - 202x Pl Soyuz-2-1b Fregat
Kosmos 2xxx (Tundra 16L) - 202x Pl Soyuz-2-1b Fregat

References: