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Zenit-4MT
Part of Vostok Family

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.

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.

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


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.
  • Cosmos 470 - . Payload: Zenit-4MT no. 1. Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 10.00 days. Decay Date: 1972-01-06 . USAF Sat Cat: 5727 . COSPAR: 1971-118A. Apogee: 259 km (160 mi). Perigee: 192 km (119 mi). Inclination: 65.0000 deg. Period: 89.00 min. Military topography satellite; returned film capsule; deployed science capsule..

1972 July 13 - . 14:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
  • Cosmos 502 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1972-07-25 . USAF Sat Cat: 6105 . COSPAR: 1972-055A. Apogee: 262 km (162 mi). Perigee: 203 km (126 mi). Inclination: 65.0000 deg. Period: 89.10 min. Military topography satellite; returned film capsule; carried science package..

1972 December 27 - . 10:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
  • Cosmos 541 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1973-01-08 . USAF Sat Cat: 6326 . COSPAR: 1972-105A. Apogee: 348 km (216 mi). Perigee: 218 km (135 mi). Inclination: 81.0000 deg. Period: 90.20 min. Military topography satellite; returned film capsule; separated science capsule..

1973 June 27 - . 11:50 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
  • Cosmos 576 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1973-07-09 . USAF Sat Cat: 6713 . COSPAR: 1973-044A. Apogee: 332 km (206 mi). Perigee: 204 km (126 mi). Inclination: 72.9000 deg. Period: 89.80 min. Military topography satellite; returned film capsule; separated science capsule..

1973 December 17 - . 12:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
  • Cosmos 616 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 11.00 days. Decay Date: 1973-12-28 . USAF Sat Cat: 6979 . COSPAR: 1973-102A. Apogee: 332 km (206 mi). Perigee: 206 km (128 mi). Inclination: 72.9000 deg. Period: 89.90 min. Military topography satellite; returned film capsule; separated science capsule..

1974 June 29 - . 12:50 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
  • Cosmos 664 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1974-07-11 . USAF Sat Cat: 7351 . COSPAR: 1974-049A. Apogee: 341 km (211 mi). Perigee: 205 km (127 mi). Inclination: 72.9000 deg. Period: 90.00 min. Military topography satellite; returned film capsule; separated science capsule..

1974 November 4 - . 10:40 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
  • Cosmos 693 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1974-11-16 . USAF Sat Cat: 7509 . COSPAR: 1974-088A. Apogee: 243 km (150 mi). Perigee: 219 km (136 mi). Inclination: 81.3000 deg. Period: 89.10 min. Military topography satellite; returned film capsule; separated science capsule..

1975 March 21 - . 06:50 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 720 - . Payload: Zenit-4MT Mod. Mass: 4,000 kg (8,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 11.00 days. Decay Date: 1975-04-01 . USAF Sat Cat: 7696 . COSPAR: 1975-019A. Apogee: 273 km (169 mi). Perigee: 212 km (131 mi). Inclination: 62.8000 deg. Period: 89.30 min. Military topography satellite; returned film capsule..

1975 September 12 - . 05:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 759 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 11.00 days. Decay Date: 1975-09-23 . USAF Sat Cat: 8275 . COSPAR: 1975-084A. Apogee: 276 km (171 mi). Perigee: 231 km (143 mi). Inclination: 62.8000 deg. Period: 89.60 min. Military topography satellite; returned film capsule; separated science capsule..

1976 March 31 - . 12:50 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
  • Cosmos 811 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1976-04-12 . USAF Sat Cat: 8781 . COSPAR: 1976-030A. Apogee: 338 km (210 mi). Perigee: 206 km (128 mi). Inclination: 72.9000 deg. Period: 90.00 min. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources; deployed capsule..

1976 September 21 - . 11:40 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 855 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1976-10-03 . USAF Sat Cat: 9433 . COSPAR: 1976-095A. Apogee: 321 km (199 mi). Perigee: 221 km (137 mi). Inclination: 72.9000 deg. Period: 89.90 min. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources; deployed capsule..

1977 June 10 - . 08:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 916 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 11.00 days. Decay Date: 1977-06-21 . USAF Sat Cat: 10040 . COSPAR: 1977-046A. Apogee: 304 km (188 mi). Perigee: 255 km (158 mi). Inclination: 62.7000 deg. Period: 90.10 min. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources; deployed capsule..

1978 February 8 - . 12:15 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 988 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1978-02-20 . USAF Sat Cat: 10666 . COSPAR: 1978-015A. Apogee: 335 km (208 mi). Perigee: 201 km (124 mi). Inclination: 72.8000 deg. Period: 89.90 min. Military topography satellite; returned film capsule; maneuverable; also performed mapping, geodesy, earth resources tasks..

1978 November 1 - . 12:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 1046 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1978-11-13 . USAF Sat Cat: 11098 . COSPAR: 1978-102A. Apogee: 324 km (201 mi). Perigee: 202 km (125 mi). Inclination: 72.9000 deg. Period: 89.80 min. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources tasks; deployed capsule..

1978 December 28 - . 16:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 1069 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 13.00 days. Decay Date: 1979-01-10 . USAF Sat Cat: 11173 . COSPAR: 1978-124A. Apogee: 289 km (179 mi). Perigee: 254 km (157 mi). Inclination: 62.9000 deg. Period: 89.90 min. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources tasks; separated capsule..

1979 August 3 - . 10:45 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 1119 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1979-08-15 . USAF Sat Cat: 11478 . COSPAR: 1979-071A. Apogee: 245 km (152 mi). Perigee: 213 km (132 mi). Inclination: 81.4000 deg. Period: 89.00 min. Military topography satellite; returned film capsule; separated capsule..

1979 October 5 - . 11:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 1139 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 13.00 days. Decay Date: 1979-10-18 . USAF Sat Cat: 11564 . COSPAR: 1979-088A. Apogee: 329 km (204 mi). Perigee: 199 km (123 mi). Inclination: 72.8000 deg. Period: 89.80 min. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources tasks; separated capsule..

1980 May 15 - . 05:35 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 1180 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 11.00 days. Decay Date: 1980-05-26 . USAF Sat Cat: 11798 . COSPAR: 1980-038A. Apogee: 279 km (173 mi). Perigee: 245 km (152 mi). Inclination: 62.8000 deg. Period: 89.80 min. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources tasks; separated capsule..

1980 September 23 - . 10:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 1211 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 11.00 days. Decay Date: 1980-10-04 . USAF Sat Cat: 11982 . COSPAR: 1980-077A. Apogee: 236 km (146 mi). Perigee: 211 km (131 mi). Inclination: 82.4000 deg. Period: 89.00 min. Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources tasks; separated capsule..

1981 January 16 - . 12:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 1239 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1981-01-28 . USAF Sat Cat: 12140 . COSPAR: 1981-004A. Apogee: 231 km (143 mi). Perigee: 210 km (130 mi). Inclination: 82.3000 deg. Period: 88.90 min. Military topography satellite; returned film capsule; also performed mapping, geodesy..

1981 September 18 - . 09:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 1309 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 13.00 days. Decay Date: 1981-10-01 . USAF Sat Cat: 12837 . COSPAR: 1981-092A. Apogee: 257 km (159 mi). Perigee: 212 km (131 mi). Inclination: 82.3000 deg. Period: 89.20 min. Military topography satellite; returned film capsule; also performed mapping, geodesy..

1982 January 12 - . 12:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 1332 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 13.00 days. Decay Date: 1982-01-25 . USAF Sat Cat: 13031 . COSPAR: 1982-002A. Apogee: 251 km (155 mi). Perigee: 207 km (128 mi). Inclination: 82.3000 deg. Period: 89.00 min. Military topography satellite; returned film capsule; also performed mapping, geodesy..

1982 August 3 - . 11:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 1398 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 10.00 days. Decay Date: 1982-08-13 . USAF Sat Cat: 13396 . COSPAR: 1982-077A. Apogee: 231 km (143 mi). Perigee: 211 km (131 mi). Inclination: 82.4000 deg. Period: 88.90 min. Military topography satellite; returned film capsule; also performed mapping, geodesy..


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