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 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-M boosters into Molniya-orbits, inclined highly elliptical 12 h orbits.
The first Tundra satellite is to be launched in the last quarter of 2014 on a Soyuz-2-1b Fregat-M booster. Until 2020, six satellites are planned to be orbited.
|Type / Application:||Early warning, communication|
|Contractors:||RKK Energiya (bus); TsNII Kometa (payload)|
|Configuration:||USP Bus ?|
|Power:||Deployable solar arrays, batteries|
|Orbit:||1626 km × 38552 km, 63.37° (#1)|
|Kosmos 2510 (Tundra 11L)||2015-066A||17.11.2015||Pl LC-43/4||Soyuz-2-1b Fregat-M|
|Kosmos 2xxx (Tundra 12L)||-||2017||Pl||Soyuz-2-1b Fregat-M|
|Kosmos 2xxx (Tundra 13L)||-||Pl||Soyuz-2-1b Fregat-M|
|Kosmos 2xxx (Tundra 14L)||-||Pl||Soyuz-2-1b Fregat-M|
|Kosmos 2xxx (Tundra 15L)||-||Pl||Soyuz-2-1b Fregat-M|
|Kosmos 2xxx (Tundra 16L)||-||2020||Pl||Soyuz-2-1b Fregat-M|