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Engineering Voyager 2's encounter with Uranus (1986)

Laeser, Richard P. ; Wolff, Donna M. ; Mclaughlin, William I.

In: Other Sources

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Publication Date: 2011-08-19

Description: Changes made by radio control from the ground in the Voyager 2 spacecraft as it approached Uranus are described. Reduced power required that subsystems and heaters had to be switched on and off in carefully synchronized fashion. Low light levels required increased exposure times, so the jiggling of the spacecraft had to be minimized. Coding changes were made and image data were compressed to cope with the reduced bit rate at larger distances. Successful efforts to cope with failures in the primary radio receiver and in the computer instructions for image compression are described, as are changes made on the ground in the spacecraft navigation.

Keywords: ASTRONAUTICS (GENERAL)

Type: Scientific American (ISSN 0036-8733); 255; 36-45

Format: text

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