Kosmos 1409

Kosmos 1409

Names	Космос 1409
Mission type	Early warning system
Operator	Russian Strategic Nuclear Forces
COSPAR ID	1982-095A
SATCAT no.	13585
Mission duration	4 years (achieved) [1]
Spacecraft properties
Spacecraft type	Oko No. 6008
Bus	US-K
Launch mass	2,400 kg (5,300 lb)
Dry mass	1,250 kg (2,760 lb)
Dimensions	2 m (6 ft 7 in) long and 1.7 m (5 ft 7 in) diameter
Start of mission
Launch date	22 September 1982, 06:23:11 UTC[2]
Rocket	Molniya-M / Blok 2BL
Launch site	Plesetsk, Site 16/2
Contractor	TsSKB-Progress
Entered service	22 September 1982
End of mission
Deactivated	5 January 1987 [1]
Decay date	8 June 2009
Orbital parameters
Reference system	Geocentric orbit[3]
Regime	Molniya orbit
Slot	2
Perigee altitude	613 km (381 mi)
Apogee altitude	39,340 km (24,440 mi)
Inclination	62.80°
Period	709.00 minutes
Instruments
Telescope
Kosmos Series

Kosmos 1409 (Russian: Космос 1409 meaning Cosmos 1409) was a Soviet US-K missile early warning satellite which was launched in 1982 as part of the Soviet military's Oko programme.^[4] Kosmos 1409 replaced Kosmos 1217 as part of the Oko constellation of satellites and covered the plane 2 - 317° longitude of ascending node.^[5]

Mission

The satellite was designed to identify missile launches using optical telescopes and infrared sensors.^[4]

Launch

Kosmos 1409 was launched from Site 16/2 from Plesetsk Cosmodrome in Soviet Union.^[2] A Molniya-M launch vehicle with a Blok 2BL upper stage was used to perform the launch, which took place at 06:23:11 UTC on 22 September 1982.^[2] The launch successfully placed the satellite into a Molniya orbit. It subsequently received its Kosmos designation, and the COSPAR International Designator 1982-095A.^[6] The United States Space Command assigned it the Satellite Catalog Number 13585.^[6]

Atmospheric entry

It reentered the Earth's atmosphere on 8 June 2009.^[6]

See also

• List of Kosmos satellites (1251–1500)
• List of R-7 launches (1980-1984)
• 1982 in spaceflight
• List of Oko satellites

References

1. Podvig, Pavel (6 February 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 15 March 2012. Retrieved 16 November 2021.
2. McDowell, Jonathan (21 July 2021). "Launch Log". Jonathan's Space Report. Retrieved 16 November 2021.
3. "Trajectory: Kosmos 1409 (1982-095A)". NASA. 28 October 2021. Retrieved 16 November 2021. This article incorporates text from this source, which is in the public domain.
4. "US-K (73D6)". Gunter's Space Page. 11 December 2017. Retrieved 16 November 2021.
5. "Display: Kosmos 1409 (1982-095A)". NASA. 28 October 2021. Retrieved 16 November 2021. This article incorporates text from this source, which is in the public domain.
6. McDowell, Jonathan (21 July 2021). "Satellite Catalog". Jonathan's Space Report. Retrieved 16 November 2021.