US-KS
| Manufacturer | NPO Lavochkin |
|---|---|
| Country of origin | Soviet Union Russia |
| Operator | VKS |
| Applications | Missile defence |
| Specifications | |
| Bus | Upravlyaemy Sputnik |
| Launch mass | 2,400 kilograms (5,300 lb) |
| Regime | Geosynchronous |
| Production | |
| Status | Retired |
| Launched | 7 |
| Operational | 0 |
| Retired | 7 |
| Failed | None known |
| Lost | 0 |
| Maiden launch | Kosmos 775 8 October 1975 |
| Last launch | Kosmos 2345 14 August 1997 |
| Related spacecraft | |
| Derived from | US-K |
| Derivatives | US-KMO |
Upravlyaemy Sputnik Kontinentalny Statsionarny (US-KS; Russian: Управляемый Спутник Континентальный Стационарный meaning Stationary Continental Controllable Satellite; Russian: УС-КС), also known as Oko-S, was a series of Soviet, and later Russian, missile detection satellites launched as part of the Oko (Russian: "eye") programme.