k hor uk ov ▁announced ▁that ▁a ▁contract ▁had ▁been ▁signed ▁to ▁manufact ure ▁these ▁sat ell ites ▁and ▁that ▁there ▁would ▁be ▁a ▁launch ▁later ▁in ▁ 2 0 1 2 . ▁The ▁last ▁sat ell ites ▁of ▁the ▁previous ▁O ko ▁system ▁were ▁Kos mos ▁ 2 4 7 9 , ▁launched ▁on ▁ 3 0 ▁March ▁ 2 0 1 2 , ▁and ▁Kos mos ▁ 2 4 6 9 , ▁launched ▁on ▁ 3 0 ▁September ▁ 2 0 1 0 . ▁ ▁The ▁first ▁E KS ▁satellite ▁( K os mos ▁ 2 5 1 0 , ▁E KS - 1 , ▁T und ra ▁ 1 1 L ) ▁was ▁eventually ▁launched ▁from ▁P les et sk ▁on ▁November ▁ 1 7 , ▁ 2 0 1 5 ▁using ▁a ▁So y uz - 2 . 1 b ▁ro cket ▁and ▁ ▁there ▁are ▁three ▁in ▁service . ▁ ▁Sat ell ites ▁ ▁References ▁ ▁External ▁links ▁ ▁The ▁E KS ▁system ▁at ▁An atol y ▁Zak ' s ▁Russian ▁Space ▁Web ▁ ▁Category : E ar ly ▁warning ▁sat ell ites ▁Category : E ar ly ▁warning ▁systems ▁Category : Mil it ary ▁sat ell ites ▁of ▁Russia ▁Category : S at ell ites ▁using ▁the ▁US P ▁bus ▁Category : Space craft ▁launched ▁by ▁So y uz - 2 ▁rock ets <0x0A> </s> ▁The ▁name ▁Ent eng ▁has ▁been ▁used ▁in ▁the ▁Philippines ▁by ▁P AG AS A ▁in ▁the ▁Western ▁Pacific . ▁ ▁Se