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| Exploded view-Zenit - Exploded View of Typical Components of a Zenit-class reconnaisance satellite:. 1 - Power module; 2 - Solar panels; 3 - SA re-entry capsule, which returns film and camera to earth; 4 - Command radio antenna; 5 - Cold gas tanks of the pressurisation/thermal control system; 6 - Radar altimeter; 7 - Equipment module; 8 - Orientation system engine; 9 - Solid rocket motor deorbit engine; 10 - Thermoregulation system radiators; 11 - Equipment frame; 12 - Infrared horizon scanner; 13 - Electrical system umbilical; 14 - Mayak system antennae 19,914 bytes. 439 x 256 pixels. |
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Article Number: 11F629. Code Name: Orion. Class: Surveillance. Type: Military. Nation: USSR. Manufacturer: TsKB. Special version of Zenit developed for topographical photography. This was developed by OKB-1 Filial 1 based on the Zenit-4M. It utilised the SA-106 topographic camera from the Krasnogorsk Mechanical Factory, and a laser altimeter and doppler apparatus developed by NPO Radiopribor. The draft project was completed in 1968. Flight trials aboard the Soyuz launch vehicle began in 1971 from Plesetsk. Trials were completed in 1975 and the system was accepted into service in 1976. Launch vehicle was Soyuz 11A511M, the only spacecraft to use this launch vehicle. Typical orbital profile: inclination 82.3 degrees, 81.3 degrees with altitude of 215-245 km; inclination 72.8 degrees with altitude of 200-325 km; inclination 62.8 degrees with altitude of 230-275 km. Designed duration: 12 or 13 days. Transmission frequencies observed in West: 19.994 FSK.
SpecificationTotal Mass: 6,300 kg.
Zenit-4MT Chronology
27 December 1971
Cosmos 470 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511M. Mass: 6,300 kg. Perigee: 192 km. Apogee: 259 km. Inclination: 65.0 deg. Duration: 10.00 days. Military topography satellite; returned film capsule; deployed science capsule.
13 July 1972
Cosmos 502 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511M. Mass: 6,000 kg. Perigee: 203 km. Apogee: 262 km. Inclination: 65.0 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; carried science package.
27 December 1972
Cosmos 541 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511M. Mass: 6,000 kg. Perigee: 218 km. Apogee: 348 km. Inclination: 81.0 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; separated science capsule.
27 June 1973
Cosmos 576 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511M. Mass: 6,000 kg. Perigee: 204 km. Apogee: 332 km. Inclination: 72.9 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; separated science capsule.
17 December 1973
Cosmos 616 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511M. Mass: 6,000 kg. Perigee: 206 km. Apogee: 332 km. Inclination: 72.9 deg. Duration: 11.00 days. Military topography satellite; returned film capsule; separated science capsule.
29 June 1974
Cosmos 664 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511M. Mass: 6,000 kg. Perigee: 205 km. Apogee: 341 km. Inclination: 72.9 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; separated science capsule.
04 November 1974
Cosmos 693 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511M. Mass: 6,000 kg. Perigee: 219 km. Apogee: 243 km. Inclination: 81.3 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; separated science capsule.
21 March 1975
Cosmos 720 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 4,000 kg. Perigee: 212 km. Apogee: 273 km. Inclination: 62.8 deg. Duration: 11.00 days. Military topography satellite; returned film capsule.
12 September 1975
Cosmos 759 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,000 kg. Perigee: 231 km. Apogee: 276 km. Inclination: 62.8 deg. Duration: 11.00 days. Military topography satellite; returned film capsule; separated science capsule.
31 March 1976
Cosmos 811 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511M. Mass: 6,000 kg. Perigee: 206 km. Apogee: 338 km. Inclination: 72.9 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources; deployed capsule.
21 September 1976
Cosmos 855 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,000 kg. Perigee: 221 km. Apogee: 321 km. Inclination: 72.9 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources; deployed capsule.
10 June 1977
Cosmos 916 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 255 km. Apogee: 304 km. Inclination: 62.7 deg. Duration: 11.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources; deployed capsule.
08 February 1978
Cosmos 988 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 201 km. Apogee: 335 km. Inclination: 72.8 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; maneuverable; also performed mapping, geodesy, earth resources tasks.
01 November 1978
Cosmos 1046 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 202 km. Apogee: 324 km. Inclination: 72.9 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources tasks; deployed capsule.
28 December 1978
Cosmos 1069 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 254 km. Apogee: 289 km. Inclination: 62.9 deg. Duration: 13.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources tasks; separated capsule.
03 August 1979
Cosmos 1119 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 213 km. Apogee: 245 km. Inclination: 81.4 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; separated capsule.
05 October 1979
Cosmos 1139 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 199 km. Apogee: 329 km. Inclination: 72.8 deg. Duration: 13.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources tasks; separated capsule.
15 May 1980
Cosmos 1180 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 245 km. Apogee: 279 km. Inclination: 62.8 deg. Duration: 11.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources tasks; separated capsule.
23 September 1980
Cosmos 1211 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 211 km. Apogee: 236 km. Inclination: 82.4 deg. Duration: 11.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources tasks; separated capsule.
16 January 1981
Cosmos 1239 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 210 km. Apogee: 231 km. Inclination: 82.3 deg. Duration: 12.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy.
18 September 1981
Cosmos 1309 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 212 km. Apogee: 257 km. Inclination: 82.3 deg. Duration: 13.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy.
12 January 1982
Cosmos 1332 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 207 km. Apogee: 251 km. Inclination: 82.3 deg. Duration: 13.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy.
03 August 1982
Cosmos 1398 Launch Site: Plesetsk . Launch Vehicle: Soyuz 11A511U. Mass: 6,300 kg. Perigee: 211 km. Apogee: 231 km. Inclination: 82.4 deg. Duration: 10.00 days. Military topography satellite; returned film capsule; also performed mapping, geodesy.
Bibliography:- 2 - McDowell, Jonathan, The United Nations Registry of Space Objects, Harvard University, 1997. HTML when accessed: http://hea-www.harvard.edu/QEDT/jcm/space/un/un.html
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Last update 12 March 2001.
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