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astronautix.com Sfera


Article Number: 11F621. Class: Earth. Type: Geodetic. Nation: USSR. Manufacturer: Reshetnev.

The Sfera geodetic system covered a broad development for solving problems in geodetics, continental drift, and precise location of cartographic points. The spacecraft was equipped with measurement and signalling apparatus, providing assistance in measuring astronomical-geodetic points of military topographical research for the Red Army General Staff. The satellite allowed improved accuracy for long range weapons. Reshetnev was the Chief Designer. Flight tests were from 1968 to 1972. Series flights were from 1973 to 1980. The Kosmos 3M launcher was used. Colonel Ye S Shchapov was in charge of Sfera development. Sfera used the basic KAUR-1 bus, consisting of a 2.035 m diameter cylindrical spacecraft body, with solar cells and radiators of the thermostatic temperature regulating system mounted on the exterior. Orientation was by a single-axis magneto-gravitational (gravity gradient boom) passive system. The hermetically sealed compartment had the equipment mounted in cruciform bays, with the chemical batteries protecting the radio and guidance equipment mounted at the centre.


Specification

Total Length: 3.0 m. Maximum Diameter: 2.0 m. Total Mass: 800 kg.


Sfera Chronology


20 February 1968 Cosmos 203 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 600 kg. Perigee: 1,180 km. Apogee: 1,199 km. Inclination: 74.1 deg.

Investigation of the upper atmosphere and outer space.


04 June 1968 Sfera s/n 12L Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. FAILURE: Launch vehicle failed to orbit - unknown cause.
30 November 1968 Cosmos 256 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 600 kg. Perigee: 1,170 km. Apogee: 1,220 km. Inclination: 74.0 deg.

Investigation of the upper atmosphere and outer space.


17 March 1969 Cosmos 272 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 600 kg. Perigee: 1,177 km. Apogee: 1,205 km. Inclination: 74.0 deg.

Investigation of the upper atmosphere and outer space.


24 November 1969 Cosmos 312 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 600 kg. Perigee: 1,138 km. Apogee: 1,174 km. Inclination: 74.0 deg.

Investigation of the upper atmosphere and outer space.


28 April 1971 Cosmos 409 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 600 kg. Perigee: 1,174 km. Apogee: 1,209 km. Inclination: 74.0 deg.

Investigation of the upper atmosphere and outer space.


20 November 1971 Cosmos 457 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 600 kg. Perigee: 1,180 km. Apogee: 1,216 km. Inclination: 74.0 deg.

Investigation of the upper atmosphere and outer space.


25 March 1972 Cosmos 480 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 600 kg. Perigee: 1,170 km. Apogee: 1,196 km. Inclination: 83.0 deg.

Investigation of the upper atmosphere and outer space.


21 December 1972 Cosmos 539 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 600 kg. Perigee: 1,340 km. Apogee: 1,377 km. Inclination: 74.0 deg.

Investigation of the upper atmosphere and outer space.


08 September 1973 Cosmos 585 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 550 kg. Perigee: 1,372 km. Apogee: 1,402 km. Inclination: 74.0 deg.

Investigation of the upper atmosphere and outer space.


29 April 1974 Cosmos 650 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 600 kg. Perigee: 1,365 km. Apogee: 1,399 km. Inclination: 74.0 deg.

Investigation of the upper atmosphere and outer space.


29 August 1974 Cosmos 675 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 600 kg. Perigee: 1,362 km. Apogee: 1,421 km. Inclination: 74.1 deg.

Investigation of the upper atmosphere and outer space.


12 February 1975 Cosmos 708 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 650 kg. Perigee: 1,367 km. Apogee: 1,408 km. Inclination: 69.2 deg.

Investigation of the upper atmosphere and outer space.


24 September 1975 Cosmos 770 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 650 kg. Perigee: 1,163 km. Apogee: 1,204 km. Inclination: 83.0 deg.

Investigation of the upper atmosphere and outer space.


21 July 1976 Cosmos 842 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 650 kg. Perigee: 963 km. Apogee: 1,004 km. Inclination: 83.0 deg.

Investigation of the upper atmosphere and outer space.


25 May 1977 Cosmos 911 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 700 kg. Perigee: 962 km. Apogee: 997 km. Inclination: 82.9 deg.

Investigation of the upper atmosphere and outer space.


24 November 1977 Cosmos 963 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 650 kg. Perigee: 1,176 km. Apogee: 1,204 km. Inclination: 82.9 deg.

Investigation of the upper atmosphere and outer space.


26 December 1978 Cosmos 1067 Launch Site: Plesetsk . Launch Vehicle: Kosmos 11K65M. Mass: 880 kg. Perigee: 1,154 km. Apogee: 1,210 km. Inclination: 83.0 deg.

Investigation of the upper atmosphere and outer space.



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