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File:Cassegrain 85ft antenna Goldstone Deep Space Center.jpg

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Summary

Description
English: Feed horn and secondary reflector of 85 ft Cassegrain antenna at Goldstone Deep Space Communications Complex, California in 1963. This is a view from the bottom of the 85 ft diameter dish antenna, which is facing up, showing the feed. The radio waves from the spacecraft reflect off the dish to the small convex secondary reflector supported on the booms at top, then are reflected into the exponential feed horn inside the white pillar. where they are conducted through a waveguide to the receiver.
Date
Source Retrieved June 3, 2015 from James Joseph, "Ranger 6, Where Are You" in Popular Science" magazine, Popular Science Publishing Co., New York, Vol. 182, No. 6, June 1963, p. 67 on Google Books
Author James Joseph
Permission
(Reusing this file)
This 1963 issue of Popular Science magazine would have the copyright renewed in 1991. Online page scans of the Catalog of Copyright Entries, published by the US Copyright Office can be found here. Search of the Renewals for Periodicals for 1978 and later show no renewal entries for Popular Science. Therefore the copyright was not renewed and it is in the public domain.

Licensing

Public domain
This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs.

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Captions

Satellite antenna at NASA Goldstone communication center

Items portrayed in this file

depicts

June 1963

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59b87edce1084c49e1fd5b3b88767f82c521add2

63,254 byte

887 pixel

320 pixel

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current04:25, 14 June 2015Thumbnail for version as of 04:25, 14 June 2015320 × 887 (62 KB)ChetvornoUser created page with UploadWizard

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