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astronautix.com Etalon


Class: Earth. Type: Geodetic. Nation: USSR.

Passive geodetical satellites, 1.294 m in diameter, covered with 306 antenna arrays, each with 14 corer cubes for laser reflection. Etalon was designed and launched with the primary mission of fully characterising the earth's gravitational field at the altitude and inclination planned for the Glonass navigation satellites. The satellite was also used to refine understanding of Earth and Moon's gravitational fields, determine the effect of non-gravitational forces on the satellites; acquisition of data to enhance accuracy in identifying and forecasting movements of space apparatus, and for geophysical and geodetic research.


Specification

Total Length: 1.3 m. Maximum Diameter: 1.3 m. Total Mass: 1,415 kg.


Etalon Chronology


10 January 1989 Cosmos 1989 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 1,415 kg. Perigee: 19,097 km. Apogee: 19,152 km. Inclination: 64.9 deg.

Etalon series. Acquisition of data to enhance accuracy in identifying and forecasting movements of space apparatus, and for geophysical and geodetic research.


31 May 1989 Cosmos 2024 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 1,415 kg. Perigee: 19,095 km. Apogee: 19,146 km. Inclination: 65.5 deg.

Etalon series. Acquisition of data to enhance accuracy in identifying and forecasting movements of space apparatus, and for geophysical and geodetic research.



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Last update 12 March 2001.
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© Mark Wade, 2001 .