Polet

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Polet

 

(Polyot), the name of the first maneuverable artificial earth satellites developed in space technology and equipped with instrumentation and propulsion systems enabling mid-flight changes in altitude and the orbital plane. Scientific equipment, a telemetric system, and radio transmitters were also mounted onboard.

Polet 1 was launched Nov. 1, 1963. Its initial orbit had a perigee of 339 km and an apogee of 592 km. After a series of maneuvers, Polet 1 was injected into an orbit with an apogee of 1,437 km. Polet 2 was launched Apr. 12, 1964. Orbital maneuvers resulted in new flight parameters: a perigee of 310 km, an apogee ranging from 465 to 500 km, and an orbital inclination of 60° instead of 236 km, 465 km, and 58°, respectively. Polet 1 and Polet 2 will continue to exist for about 25 years.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
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