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astronautix.com Yantar-4K1

Soviet Reconnsats
Soviet Reconnsats - Soviet reconnaissance satellites. Top row: Zenit-2, Zenit-4, Advanced Zenit with aerodynamic orientation; Middle Row: Yantar 1K, Yantar 2K, Orlets-1 with multiple return capsules; bottom row, Buran-serviced pallet-based satellite; Yantar 4KS electrooptical

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Article Number: 11F693. Code Name: Oktant. Class: Surveillance. Type: Military. Nation: USSR. Manufacturer: TsKB.

Flight trials of the Yantar-2K indicated the satellite was not capable of providing strategic warning of attack. A meeting of the Council of Chief Designers at TsSKB in May 1977 reviewed alternative approaches. Three additional variants were to be developed, one of them the high resolution Yantar-4K. The project was to be implemented in two phases: the Yantar-4K1, launched by the existing Soyuz-U launch vehicle, and the Yantar-4K2, to be launched by the new more powerful Zenit launch vehicle.

The Yantar-4K1 would increase the satelliteís operational lifetime by 50%, to 45 days, and have an improved camera system, the PO Krasnogorskiy Zavodís Zhemchug-18. These changes were relatively minor. Externally the spacecraft were difficult to distinguish, and the masses were essentially the same. Therefore the same Soyuz 11A511U rocket and 11S516 payload fairing could be used for the Yantar-4K1.

The project went smoothly and rapidly. The first flight model was ready only two years later. The first launch in the flight trials was in April 1979, for 30 days. A second full-duration flight a year later was also successful, leading to the acceptance test flight in October 1980, also without problem. Yantar-4K1 was accepted into service in 1982 with the code name Oktan. Due to capacity problems as TsKB in Samara, production was handed over to KB Arsenal from 1984.

The Yantar-4K1 ultimately replaced the Zenit reconnaissance satellite series, with the final military flight of the Zenit in October 1980. Zenit civilian models continued in use after the retirement of the Yantar-4K1 (Oblik, Resurs F-1 and F-2). From 1984 Yantar-4K1 was flown for durations of up to 60 days. Launches continued into 1999. Typical orbital profile was: inclination 64.9, 67.1, or 70 degrees with altitude of 170-340 km. Transmission frequency observed in the West was 240.5 PCM-FM.


Specification

Total Length: 6.3 m. Maximum Diameter: 2.7 m. Total Mass: 6,600 kg.


Yantar-4K1 Chronology


21 July 1967 US Project reassigned; R-36-O booster development approved; Yantar-2K and Zvevda 7K-VI approved. Launch Vehicle: R-36-O, Tsyklon 2, Soyuz 11A511M.

Decree 715-240 'On the Creation of Space Systems for Naval Reconnaissance Comprising the US sat and the R-36-based booster -further work on the US naval reconnaissance satellite, approval of work on the Yantar-2K, and course of work on 7K-VI Zvezda'.

An entire family of Yantar spacecraft was proposed by Kozlovís design bureau during the initial development; information on two film return models has been declassified. Yantar was initially derived from the Soyuz spacecraft, including systems developed for the Soyuz VI military model. During design and development this changed until it had very little in common with Soyuz.

Following numerous problems in the first flight tests of the Soyuz 7K-OK, Kozlov ordered a complete redesign of the 7K-VI manned military spacecraft. The new spacecraft, with a crew of two, would have a total mass of 6.6 tonnes and could operate for a month in orbit. The new design switched the positions of the Soyuz descent module and the orbital modules and was 300 kg too heavy for the standard 11A511 launch vehicle. Therefore Kozlov designed a new variant of the Soyuz launch vehicle, the 11A511M. The project was approved by the Central Committee of the Communist Party, with first flight to be in 1968 and operations to begin in 1969. The booster design, with unknown changes to the basic Soyuz, did not go into full production.


01 May 1977 Council of Chief Designers reconsiders Yantar Soviet reconnsat designs

Flight trials of the Yantar-2K indicated the satellite was not capable of providing strategic warning of attack. The planned Yantar-6K series, in development since 1969, were overweight and behind schedule. A meeting of the Council of Chief Designers at TsSKB reviewed alternative approaches. It was decided that three variants of the Yantar-2K were to be developed, one of them the high resolution Yantar-4K.


27 April 1979 Cosmos 1097 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 173 km. Apogee: 331 km. Inclination: 62.8 deg. Duration: 30.00 days.

First flight test of Yantar-4K1 satellite. Returned as planned after 30 days. High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


29 April 1980 Cosmos 1177 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 167 km. Apogee: 331 km. Inclination: 67.2 deg. Duration: 44.00 days.

Second flight test of Yantar-4K1 satellite. Demonstrated full spacecraft design duration of 45 days. High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


30 October 1980 Cosmos 1218 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 158 km. Apogee: 285 km. Inclination: 64.9 deg. Duration: 43.00 days.

Successful state acceptance test flight of Yantar-4K1 satellite. Led to Yantar-4K1 acceptance for Red Army service the following year. High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


21 August 1981 Cosmos 1298 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 170 km. Apogee: 328 km. Inclination: 64.8 deg. Duration: 42.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


02 April 1982 Cosmos 1347 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 172 km. Apogee: 337 km. Inclination: 70.4 deg. Duration: 49.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


08 June 1982 Cosmos 1377 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 173 km. Apogee: 363 km. Inclination: 64.9 deg. Duration: 44.00 days.

Photo surveillance; 2 small film capsules recovered in course of flight and main reentry capsule with remaining film, camera, and computer systems at end of flight.


12 June 1982 Yantar-4K1 Launch Vehicle: Soyuz 11A511U. FAILURE: Failure.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


04 August 1982 Cosmos 1399 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 171 km. Apogee: 344 km. Inclination: 64.9 deg. Duration: 43.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


16 December 1982 Cosmos 1424 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 171 km. Apogee: 349 km. Inclination: 64.9 deg. Duration: 43.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


25 February 1983 Cosmos 1442 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 169 km. Apogee: 339 km. Inclination: 67.1 deg. Duration: 45.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


26 April 1983 Cosmos 1457 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 164 km. Apogee: 354 km. Inclination: 70.4 deg. Duration: 45.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


26 May 1983 Cosmos 1466 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 166 km. Apogee: 315 km. Inclination: 64.9 deg. Duration: 41.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


10 August 1983 Cosmos 1489 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 173 km. Apogee: 299 km. Inclination: 64.7 deg. Duration: 44.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


07 September 1983 Cosmos 1496 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 167 km. Apogee: 338 km. Inclination: 67.2 deg. Duration: 42.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


14 October 1983 Cosmos 1504 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 172 km. Apogee: 304 km. Inclination: 64.9 deg. Duration: 53.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


30 November 1983 Cosmos 1511 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 182 km. Apogee: 332 km. Inclination: 67.1 deg. Duration: 44.00 days.

Photo surveillance; 2 small film capsules recovered in course of flight and main reentry capsule with remaining film, camera, and computer systems at end of flight. Final flight of the Yantar-2K/Yantar-4K1 series. All 12 Yantar-4K1 flights were completely successful.


13 January 1984 Cosmos 1532 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 163 km. Apogee: 357 km. Inclination: 67.1 deg. Duration: 44.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


28 February 1984 Cosmos 1539 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 167 km. Apogee: 338 km. Inclination: 67.2 deg. Duration: 41.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


10 April 1984 Cosmos 1548 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 165 km. Apogee: 331 km. Inclination: 67.2 deg. Duration: 45.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


25 May 1984 Cosmos 1558 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 163 km. Apogee: 293 km. Inclination: 67.1 deg. Duration: 44.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


26 June 1984 Cosmos 1576 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 167 km. Apogee: 348 km. Inclination: 67.1 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


31 July 1984 Cosmos 1585 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 172 km. Apogee: 300 km. Inclination: 64.7 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


25 September 1984 Cosmos 1599 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 164 km. Apogee: 247 km. Inclination: 67.1 deg. Duration: 56.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


21 November 1984 Cosmos 1611 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 172 km. Apogee: 299 km. Inclination: 64.7 deg. Duration: 51.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


09 January 1985 Cosmos 1616 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 171 km. Apogee: 356 km. Inclination: 64.9 deg. Duration: 54.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


27 February 1985 Cosmos 1630 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 173 km. Apogee: 332 km. Inclination: 64.9 deg. Duration: 55.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


19 April 1985 Cosmos 1647 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 167 km. Apogee: 321 km. Inclination: 67.1 deg. Duration: 53.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


23 May 1985 Cosmos 1654 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 170 km. Apogee: 341 km. Inclination: 64.9 deg. Duration: 29.00 days.

High resolution photo reconnaissance. Spacecraft failed. Blown up in orbit on June 21.


16 August 1985 Cosmos 1676 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 169 km. Apogee: 332 km. Inclination: 67.1 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


29 August 1985 Cosmos 1679 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 172 km. Apogee: 341 km. Inclination: 64.9 deg. Duration: 50.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


25 October 1985 Cosmos 1699 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 166 km. Apogee: 335 km. Inclination: 67.1 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


11 December 1985 Cosmos 1706 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 175 km. Apogee: 323 km. Inclination: 67.1 deg. Duration: 60.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


15 January 1986 Cosmos 1724 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 167 km. Apogee: 330 km. Inclination: 67.1 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


26 February 1986 Cosmos 1734 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 165 km. Apogee: 343 km. Inclination: 67.1 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


09 April 1986 Cosmos 1739 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 171 km. Apogee: 326 km. Inclination: 64.9 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


06 June 1986 Cosmos 1756 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 172 km. Apogee: 268 km. Inclination: 64.9 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


17 July 1986 Cosmos 1764 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 171 km. Apogee: 339 km. Inclination: 64.9 deg. Duration: 56.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


27 August 1986 Cosmos 1773 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 171 km. Apogee: 339 km. Inclination: 64.9 deg. Duration: 55.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


13 November 1986 Cosmos 1792 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 184 km. Apogee: 309 km. Inclination: 64.9 deg. Duration: 53.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


16 December 1986 Cosmos 1807 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 165 km. Apogee: 366 km. Inclination: 67.1 deg. Duration: 38.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


09 January 1987 Cosmos 1811 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 169 km. Apogee: 345 km. Inclination: 64.9 deg. Duration: 35.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


26 February 1987 Cosmos 1824 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 162 km. Apogee: 352 km. Inclination: 67.2 deg. Duration: 55.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


09 April 1987 Cosmos 1835 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 170 km. Apogee: 343 km. Inclination: 64.8 deg. Duration: 56.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


26 May 1987 Cosmos 1847 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 175 km. Apogee: 315 km. Inclination: 67.1 deg. Duration: 57.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


09 July 1987 Cosmos 1866 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 223 km. Apogee: 769 km. Inclination: 67.2 deg. Duration: 17.00 days.

High resolution photo reconnaissance. Engine failure prematurely depleted fuel supply. Blown up in orbit on July 26.


17 September 1987 Cosmos 1886 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 170 km. Apogee: 321 km. Inclination: 67.1 deg. Duration: 46.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


22 October 1987 Cosmos 1893 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 162 km. Apogee: 323 km. Inclination: 67.2 deg. Duration: 55.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


14 December 1987 Cosmos 1901 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 172 km. Apogee: 343 km. Inclination: 64.9 deg. Duration: 51.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


03 February 1988 Cosmos 1916 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 168 km. Apogee: 352 km. Inclination: 64.9 deg. Duration: 24.00 days.

High resolution photo reconnaissance. Spacecraft failed. Blown up in orbit on February 27.


24 March 1988 Cosmos 1935 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 166 km. Apogee: 330 km. Inclination: 67.2 deg. Duration: 15.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


12 May 1988 Cosmos 1942 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 166 km. Apogee: 356 km. Inclination: 67.1 deg. Duration: 53.00 days.
22 June 1988 Cosmos 1955 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 171 km. Apogee: 357 km. Inclination: 64.8 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


16 August 1988 Cosmos 1963 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 176 km. Apogee: 350 km. Inclination: 64.8 deg. Duration: 47.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


15 September 1988 Cosmos 1969 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 165 km. Apogee: 344 km. Inclination: 67.1 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


16 December 1988 Cosmos 1984 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 186 km. Apogee: 323 km. Inclination: 62.8 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


28 January 1989 Cosmos 1993 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 171 km. Apogee: 347 km. Inclination: 64.8 deg. Duration: 58.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


02 March 1989 Cosmos 2005 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 188 km. Apogee: 324 km. Inclination: 62.8 deg. Duration: 54.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


20 April 1989 Cosmos 2018 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 185 km. Apogee: 327 km. Inclination: 62.9 deg. Duration: 60.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


17 May 1989 Cosmos 2020 Launch Site: Baikonur . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 178 km. Apogee: 280 km. Inclination: 64.8 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


12 July 1989 Cosmos 2030 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 162 km. Apogee: 349 km. Inclination: 67.2 deg. Duration: 16.00 days.

High resolution photo reconnaissance. Spacecraft failed. Blown up in orbit on July 28.


03 October 1989 Cosmos 2047 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 165 km. Apogee: 330 km. Inclination: 67.1 deg. Duration: 49.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


30 November 1989 Cosmos 2052 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 174 km. Apogee: 320 km. Inclination: 67.1 deg. Duration: 55.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


25 January 1990 Cosmos 2057 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 183 km. Apogee: 330 km. Inclination: 62.8 deg. Duration: 53.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


03 April 1990 Yantar-4K1 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. FAILURE: Failure.

High resolution photo reconnaissance mission.


07 May 1990 Cosmos 2077 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 182 km. Apogee: 328 km. Inclination: 62.9 deg. Duration: 58.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


03 July 1990 Yantar-4K1 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. FAILURE: Failure.

High resolution photo reconnaissance mission.


03 August 1990 Cosmos 2089 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 187 km. Apogee: 320 km. Inclination: 62.8 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


16 October 1990 Cosmos 2102 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 184 km. Apogee: 340 km. Inclination: 62.9 deg. Duration: 57.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


04 December 1990 Cosmos 2108 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 164 km. Apogee: 289 km. Inclination: 62.8 deg. Duration: 55.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


07 February 1991 Cosmos 2124 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 186 km. Apogee: 316 km. Inclination: 62.8 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


26 March 1991 Cosmos 2138 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 161 km. Apogee: 343 km. Inclination: 67.1 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


24 May 1991 Cosmos 2149 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 173 km. Apogee: 285 km. Inclination: 67.1 deg. Duration: 41.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


19 September 1991 Cosmos 2156 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 160 km. Apogee: 345 km. Inclination: 67.1 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


20 November 1991 Cosmos 2171 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 187 km. Apogee: 321 km. Inclination: 62.8 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


21 January 1992 Cosmos 2175 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 158 km. Apogee: 347 km. Inclination: 67.1 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


01 April 1992 Cosmos 2182 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 166 km. Apogee: 284 km. Inclination: 67.1 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


28 May 1992 Cosmos 2186 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 187 km. Apogee: 327 km. Inclination: 62.8 deg. Duration: 57.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


24 July 1992 Cosmos 2203 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 189 km. Apogee: 311 km. Inclination: 62.8 deg. Duration: 60.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


22 September 1992 Cosmos 2210 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 160 km. Apogee: 353 km. Inclination: 67.2 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


20 November 1992 Cosmos 2220 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 164 km. Apogee: 341 km. Inclination: 67.2 deg. Duration: 59.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


19 January 1993 Cosmos 2231 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 163 km. Apogee: 342 km. Inclination: 67.2 deg. Duration: 65.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


02 April 1993 Cosmos 2240 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 188 km. Apogee: 320 km. Inclination: 62.8 deg. Duration: 66.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


14 July 1993 Cosmos 2259 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 168 km. Apogee: 349 km. Inclination: 67.1 deg. Duration: 11.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


17 March 1994 Cosmos 2274 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 176 km. Apogee: 372 km. Inclination: 67.0 deg. Duration: 65.00 days.

This space object is intended for assignments on behalf of the Ministry of Defense of the Russian Federation. High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


20 July 1994 Cosmos 2283 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Duration: 71.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


22 March 1995 Cosmos 2311 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 178 km. Apogee: 316 km. Inclination: 67.1 deg. Duration: 70.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


28 June 1995 Cosmos 2314 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 175 km. Apogee: 316 km. Inclination: 67.1 deg. Duration: 70.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


14 March 1996 Cosmos 2331 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 159 km. Apogee: 291 km. Inclination: 67.1 deg. Duration: 89.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission.


20 June 1996 Yantar-4K1 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. FAILURE: Launch vehicle failure. Mass: 6,600 kg.

High resolution photo reconnaissance mission.


15 December 1997 Cosmos 2348 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,600 kg. Perigee: 175 km. Apogee: 361 km. Inclination: 67.1 deg. Duration: 120.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission. Landed 14 April 1998.


24 June 1998 Cosmos 2358 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Perigee: 167 km. Apogee: 316 km. Inclination: 67.1 deg. Duration: 120.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission. Landed October 22, 1998.


18 August 1999 Cosmos 2365 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Duration: 119.00 days.

High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission. Landed in Russia on December 15, 1999.



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Last update 12 March 2001.
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© Mark Wade, 2001 .