Encyclopedia Astronautica
Zenit-4MT



resexpvw.jpg
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. 23 launches, 1971.12.27 (Cosmos 470) to 1982.08.03 (Cosmos 1398). Special version of Zenit developed for topographical photography. This was developed by OKB-1 Filial 1 based on the Zenit-4M.

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.

AKA: 11F629; Orion.
Gross mass: 6,300 kg (13,800 lb).
First Launch: 1971.12.27.
Last Launch: 1982.08.03.
Number: 23 .

More... - Chronology...


Associated Countries
See also
  • Soyuz The Russian Soyuz spacecraft has been the longest-lived, most adaptable, and most successful manned spacecraft design. In production for fifty years, more than 240 have been built and flown on a wide range of missions. The design will remain in use with the international space station well into the 21st century, providing the only manned access to the station after the retirement of the shuttle in 2011. More...

Associated Launch Vehicles
  • Soyuz Russian orbital launch vehicle. The world's first ICBM became the most often used and most reliable launch vehicle in history. The original core+four strap-on booster missile had a small third stage added to produce the Vostok launch vehicle, with a payload of 5 metric tons. Addition of a larger third stage produced the Voskhod/Soyuz vehicle, with a payload over 6 metric tons. Using this with a fourth stage, the resulting Molniya booster placed communications satellites and early lunar and planetary probes in higher energy trajectories. By the year 2000 over 1,628 had been launched with an unmatched success rate of 97.5% for production models. Improved models providing commercial launch services for international customers entered service in the new millenium, and a new launch pad at Kourou was to be inaugurated in 2009. It appeared that the R-7 could easily still be in service 70 years after its first launch. More...
  • Soyuz 11A511M Russian orbital launch vehicle. Development of the Soyuz-M began in 1967 to launch the 6.6 metric ton Soyuz 7K-VI manned military spacecraft into a 65-degree inclination earth orbit. The spacecraft was cancelled, but development continued, and eight were Soyuz-M's were built and used to launch Zenit-4MT reconnaissance satellites in 1971-1976. The differences compared to the Soyuz-U are not known, and what (if anything) differentiated these Zenit-4MT missions from others is also a mystery. More...
  • Soyuz 11A511U Russian standardised man-rated orbital launch vehicle derived from the original R-7 ICBM of 1957. It has been launched in greater numbers than any orbital launch vehicle in history. Not coincidentally, it has been the most reliable as well. After over 40 years service in Russia, ESA built a new launch pad at Kourou which will keep it in service from three launch sites in three countries well into the mid-21st Century. More...

Associated Manufacturers and Agencies
  • MOM Russian agency overseeing development of spacecraft. Ministry of General Machine Building (Moskva, Russia), Moscow, Russia. More...
  • Kozlov Russian manufacturer of rockets and spacecraft. Kozlov Central Specialized Design Bureau, Samara, Russia. More...

Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: here.
  • Voevodin, Sergey A, "Sergey A. Voevodin's Reports", VSA072 - Space Apparatus, Web Address when accessed: here.
  • "Apparati TsSKB dlya issledobanniya prirodnikh resursov Zemli", Novosti Kosmonavtiki, 1996, Issue 6, page 40.
  • Grahn, Sven, Sven Grahn's Space History Pages, Web Address when accessed: here.
  • Melnik, T G, Voenno-Kosmicheskiy Siliy, Nauka, Moscow, 1997..

Associated Launch Sites
  • Plesetsk Plesetsk was the Soviet Union's northern cosmodrome, used for polar orbit launches of mainly military satellites, and was at one time the busiest launch centre in the world. The collapse of the Soviet Union put the main launch site of Baikonur in Kazakh territory. It now seems that once the Proton rocket is retired, Baikonur will be abandoned and Plesetsk will be Russia's primary launch centre. Upgrades to existing launch facilities will allow advanced versions of the Soyuz rocket and the new Angara launch vehicle to be launched from Plesetsk. Plesetsk's major drawback was the lower net payload in geosynchronous orbit from a northern latitude launch site. However Russia is planning to remove the disadvantage by looping geosynchronous satellites around the moon, using lunar gravity to make the necessary orbital plane change. More...

Zenit-4MT Chronology


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: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 720 - . Payload: Zenit-4MT Mod. Mass: 4,000 kg (8,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: Military topography satellite; returned film capsule..

1975 September 12 - . 05:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511U.
  • Cosmos 759 - . Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 855 - . Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 916 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 988 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 1046 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 1069 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 1119 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: Military topography satellite; returned film capsule; separated capsule..

1979 October 5 - . 11:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511U.
  • Cosmos 1139 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 1180 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 1211 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 1239 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 1309 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 1332 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: 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 11A511U.
  • Cosmos 1398 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. 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. Summary: Military topography satellite; returned film capsule; also performed mapping, geodesy..

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