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 (
EKS system.[3]
Manufactured by
NPO Lavochkin, US-KS satellites had a launch mass of 2,400 kilograms (5,300 lb), and a dry mass of 1,250 kilograms (2,760 lb). Built on a three-axis stabilised cylindrical bus with a diameter of 1.7 metres (5 ft 7 in) and a length of 2 metres (6 ft 7 in), the satellites carry 50 centimetres (20 in) infrared telescopes to detect the heat of missile exhausts.[4]
US-KS satellites were launched by
DM-2 upper stages. The first satellite to be launched was a prototype, which was followed by six operational spacecraft. With a spacecraft positioned at a longitude of 24° West, the Soviet Union could continuously monitor missile launches from the United States.[4]
References
- ^ Zak, Anatoly. "Oko early-warning satellite". RussianSpaceWeb. Retrieved 6 March 2012.
- ^ Krebs, Gunter. "US-KMO (71Kh6)". Gunter's Space Page. Retrieved 6 March 2012.
- ^ "Soyuz 2-1B launches EKS-1 to upgrade Russian Early Warning System". 17 November 2015. Retrieved 2015-12-17.
- ^ a b Krebs, Gunter. "US-KS (74Kh6)". Gunter's Space Page. Retrieved 6 March 2012.
 | This article about one or more spacecraft of the Soviet Union is a stub. You can help Wikipedia by expanding it. |
 | This article about one or more spacecraft of the Russian Federation is a stub. You can help Wikipedia by expanding it. |