en Kosmos 1684

Kosmos 1684
Spacecraft properties

Mission type	Early warning
COSPAR ID	1985-084A
SATCAT no.	16064
Mission duration	4 years ^[1]


Spacecraft type	US-K^[2]
Launch mass	1,900 kilograms (4,200 lb)^[3]


Start of mission
Launch date	24 September 1985, 01:18 (1985-09-24UTC01:18Z) UTC
Rocket	Molniya-M/2BL^[2]
Launch site	Plesetsk Cosmodrome^[2]^[3]


Orbital parameters
Reference system	Geocentric
Regime	Molniya ^[2]
Perigee altitude	597 kilometres (371 mi)^[4]
Apogee altitude	39,753 kilometres (24,701 mi)^[4]
Inclination	62.9 degrees^[4]
Period	717.68 minutes^[4]

Kosmos 1684 (Russian: Космос 1684 meaning Cosmos 1684) is a Soviet US-K missile early warning satellite which was launched in 1985 as part of the Soviet military's Oko programme. The satellite is designed to identify missile launches using optical telescopes and infrared sensors.^[2]

Kosmos 1684 was launched from Site 43/4 at Plesetsk Cosmodrome in the Russian SSR.^[5] A Molniya-M carrier rocket with a 2BL upper stage was used to perform the launch, which took place at 01:18 UTC on 24 September 1985.^[3] The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1985-084A.^[3] The United States Space Command assigned it the Satellite Catalog Number 16064.^[3]

References

^ Podvig, Pavel (2002). "History and the Current Status of the Russian Early-Warning System" (PDF). Science and Global Security. 10 (1): 21–60. Bibcode:2002S&GS...10...21P. CiteSeerX 10.1.1.692.6127. doi:10.1080/08929880212328. ISSN 0892-9882. S2CID 122901563. Archived from the original (PDF) on 2012-03-15.
^ ^a ^b ^c ^d ^e "US-K (73D6)". Gunter's Space Page. 2012-03-08. Retrieved 2012-04-21.
^ ^a ^b ^c ^d ^e "Cosmos 1684". National Space Science Data Centre. 2012-04-20. Retrieved 2012-04-25.
^ ^a ^b ^c ^d McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 30 April 2012.
^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2 May 2012.

v t e Oko programme
US-K	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
US-KS	Kosmos 775 Kosmos 1546 Kosmos 1629 Kosmos 1894 Kosmos 2155 Kosmos 2209 Kosmos 2345
US-KMO	Kosmos 2133 Kosmos 2224 Kosmos 2282 Kosmos 2350 Kosmos 2379 Kosmos 2397 Kosmos 2440 Kosmos 2479
List of satellites

v t e ← 1984 Orbital launches in 1985 1986 →
January	STS-51-C (USA-8)
February	USA-9 Arabsat-1A Brasilsat A1
March	Geosat Intelsat VA F-10
April	STS-51-D (Anik C1, Leasat 3) STS-51-B (Nusat)
May	GStar-1 Telecom 1B
June	Soyuz T-13 STS-51-G (Morelos 1, Arabsat-1B, Telstar 3D, SPARTAN-101) Progress 24 Intelsat VA F-11
July	Giotto Kosmos 1669 STS-51-F (PDP)
August	STS-51-I (Aussat A1, ASC-1, Leasat 4)
September	Spacenet 3 Soyuz T-14 Kosmos 1686 Intelsat VA F-12
October	STS-51-J (USA-11, USA-12) USA-10 STS-61-A (GLOMR)
November	STS-61-B (Morelos 2, Aussat A2, Satcom K2, OEX, EASE/ACCESS)
Unknown month	Sakigake Kosmos 1616 Kosmos 1617 Kosmos 1618 Kosmos 1619 Kosmos 1620 Kosmos 1621 Kosmos 1622 Molniya-3 No.36 Kosmos 1623 Kosmos 1624 Gorizont No.21L Kosmos 1625 Kosmos 1626 Kosmos 1627 Kosmos 1628 Meteor-2 No.13 Kosmos 1629 Kosmos 1630 Kosmos 1631 Kosmos 1632 Kosmos 1633 Kosmos 1634 Kosmos 1635 Kosmos 1636 Kosmos 1637 Kosmos 1638 Kosmos 1639 Kosmos 1640 Kosmos 1641 Kosmos 1642 Ekran No.28L Kosmos 1643 Kosmos 1644 Unnamed Kosmos 1645 Kosmos 1646 Kosmos 1647 Kosmos 1648 Prognoz 10 Kosmos 1649 Kosmos 1650 Kosmos 1651 Kosmos 1652 Kosmos 1653 Kosmos 1654 Molniya-3 No.39 Kosmos 1655 Kosmos 1656 Kosmos 1657 Kosmos 1658 Kosmos 1659 Kosmos 1660 Kosmos 1661 Kosmos 1662 Kosmos 1663 Unnamed Kosmos 1664 Kosmos 1665 Kosmos 1666 Kosmos 1667 Kosmos 1668 Molniya-3 No.37 Kosmos 1670 Kosmos 1671 Transit-O 24 Transit-O 30 Kosmos 1672 Kosmos 1672 Kosmos 1673 Kosmos 1674 Gran' No.26L Kosmos 1675 Kosmos 1676 Suisei Molniya-1 No.61 Kosmos 1677 Unnamed Kosmos 1678 Kosmos 1679 Kosmos 1680 Kosmos 1681 ECS-3 Kosmos 1682 Kosmos 1683 Kosmos 1684 Kosmos 1685 Kosmos 1687 Kosmos 1688 Kosmos 1689 Molniya-3 No.38 Kosmos 1690 Kosmos 1695 Kosmos 1692 Kosmos 1693 Kosmos 1694 Kosmos 1691 Kosmos 1696 Fanhui Shi Weixing 8 Kosmos 1697 Kosmos 1698 Molniya-1 No.73 Unnamed Meteor-3 No.2 Kosmos 1699 Kosmos 1700 Molniya-1 No.56 Kosmos 1701 Kosmos 1702 Gran' No.28L Kosmos 1703 Kosmos 1704 Kosmos 1705 Kosmos 1706 Kosmos 1707 USA-13 USA-14 Kosmos 1708 Kosmos 1709 Molniya-3 No.40 Kosmos 1710 Kosmos 1711 Kosmos 1712 Meteor-2 No.14 Kosmos 1713 Kosmos 1714
Payloads are separated by bullets ( · ), launches by pipes ( \| ). Crewed flights are indicated in underline. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in (brackets).

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Kosmos 1684

See also

References

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