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Zenit-4MT
Part of Vostok

Exploded view-Zenit

Exploded view-Zenit
Exploded View of Typical Components of a Zenit-class reconnaissance 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

Russian military surveillance satellite. Special version of Zenit developed for topographical photography. This was developed by OKB-1 Filial 1 based on the Zenit-4M. Reconnaissance, photo (film return type) satellite built by TsSKB for GRU, Russia. Launched 1971 - 1982. Used Zenit bus.

AKA: 11F629;4KT;Orion. Status: Operational 1971. First Launch: 1971-12-27. Last Launch: 1982-08-03. Number: 23 . Gross mass: 6,300 kg (13,800 lb).

It utilized 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.


More at: Zenit-4MT.

Family: Military surveillance sat, Surveillance, Surveillance orbit. Country: Russia. Engines: 11D82M. Launch Vehicles: R-7, Soyuz 11A511M, Soyuz-U. Launch Sites: Plesetsk, Plesetsk LC43/4. Agency: MOM, Kozlov bureau. Bibliography: 102, 103, 110, 2, 445, 6, 7058, 13388.
Photo Gallery

Zenit-4MTZenit-4MT
Credit: Manufacturer Image



1971 December 27 - . 14:04 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC43/4. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
1972 July 13 - . 14:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
1972 December 27 - . 10:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
1973 June 27 - . 11:50 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
1973 December 17 - . 12:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
1974 June 29 - . 12:50 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
1974 November 4 - . 10:40 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
1975 March 21 - . 06:50 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1975 September 12 - . 05:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1976 March 31 - . 12:50 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
1976 September 21 - . 11:40 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1977 June 10 - . 08:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1978 February 8 - . 12:15 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1978 November 1 - . 12:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1978 December 28 - . 16:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1979 August 3 - . 10:45 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1979 October 5 - . 11:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1980 May 15 - . 05:35 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1980 September 23 - . 10:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1981 January 16 - . 12:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1981 September 18 - . 09:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1982 January 12 - . 12:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
1982 August 3 - . 11:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.

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