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EKS (satellite)
EKS (reportedly standing for meaning Unified Space System〔) is a future programme of Russian early warning satellites and a replacement for the US-KMO and US-K satellites of the Oko programme. These satellites identify ballistic missile launches from outer space and complement early warning radars such as the Voronezh. This gives advance notice of a nuclear attack and would provide information to the A-135 missile defence system which protects Moscow.
==Timeline==
Information on the new EKS system is scarce but it appears that it was designed by Energia Corp in 1999-2000 and was selected against a proposal from Oko manufacturer NPO Lavochkin.〔 The Russian Ministry of Defence awarded the contract to Energia in 2007 with an expected delivery date of 2008, for a test launch in 2009.〔 In 2009 it was reported to be delayed until late 2011/early 2012.〔 In 2011 the Russian MoD sued Energia for the delay, claiming that a contract extension issued until May 2010 was invalid and asking for 262 million rubles in compensation.〔 According to news reports Energia said that the contract extension was valid and that the problem was with their subcontractors.〔 In addition they said that the Russian MoD kept changing the specification and demanding things that were beyond the capabilities of the industry.〔 The Russian MoD lost the court case. Energia delivered a satellite in 2009 but as of April 2012 there has not been a test launch.〔
In April 2012 minister Alexander Sukhorukov announced that a contract had been signed to manufacture these satellites and that there would be a launch later in 2012.〔 The last satellites of the previous Oko system were Kosmos 2479,〔 launched on 30 March 2012, and Kosmos 2469, launched on 30 September 2010.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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