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 (Russian: Управляемый Спутник Континентальный Стационарный meaning Stationary Continental Controllable Satellite), or US-KS (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.[1] US-KS was a derivative of the US-K satellite, optimised for operations in geosynchronous orbit. Seven were launched between 1975 and 1997, when launches ended in favour of the modernised US-KMO.[2] US-KS had the GRAU index 74Kh6. As of December 2015, the entire Oko programme is being replaced by the new 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 Proton-K carrier rockets, with Blok DM and 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.
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- Kosmos 520
- Kosmos 606
- Kosmos 665
- Kosmos 706
- Kosmos 862
- Kosmos 903
- Kosmos 917
- Kosmos 931
- Kosmos 1024
- Kosmos 1030
- Kosmos 1109
- Kosmos 1124
- Kosmos 1164
- Kosmos 1172
- Kosmos 1188
- Kosmos 1191
- Kosmos 1217
- Kosmos 1223
- Kosmos 1247
- Kosmos 1261
- Kosmos 1278
- Kosmos 1285
- Kosmos 1317
- Kosmos 1341
- Kosmos 1348
- Kosmos 1367
- Kosmos 1382
- Kosmos 1409
- Kosmos 1456
- Kosmos 1481
- Kosmos 1518
- Kosmos 1541
- Kosmos 1547
- Kosmos 1569
- Kosmos 1581
- Kosmos 1586
- Kosmos 1596
- Kosmos 1604
- Kosmos 1658
- Kosmos 1661
- Kosmos 1675
- Kosmos 1684
- Kosmos 1687
- Kosmos 1698
- Kosmos 1701
- Kosmos 1729
- Kosmos 1761
- Kosmos 1774
- Kosmos 1783
- Kosmos 1785
- Kosmos 1793
- Kosmos 1806
- Kosmos 1849
- Kosmos 1851
- Kosmos 1903
- Kosmos 1922
- Kosmos 1966
- Kosmos 1974
- Kosmos 1977
- Kosmos 2001
- Kosmos 2050
- Kosmos 2063
- Kosmos 2076
- Kosmos 2084
- Kosmos 2087
- Kosmos 2097
- Kosmos 2105
- Kosmos 2176
- Kosmos 2196
- Kosmos 2217
- Kosmos 2222
- Kosmos 2232
- Kosmos 2241
- Kosmos 2261
- Kosmos 2286
- Kosmos 2312
- Kosmos 2340
- Kosmos 2342
- Kosmos 2351
- Kosmos 2368
- Kosmos 2388
- Kosmos 2393
- Kosmos 2422
- Kosmos 2430
- Kosmos 2446
- Kosmos 2469
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