Geometrical Relationships of Pioneer 11 to Uranus and Voyager 2 in 1985-86

摘要

The geometrical relationships of Pioneer 11 to Uranus and Voyager 2 during 1985-86 are summarized, with special attention to conditions during Voyager 2's encounter with Uranus on 24 January 1986. It is shown that Pioneer 11 will be able to provide valuable observations of the solar wind, the magnetic field, and energetic particle intensity in the nearby interplanetary medium before, during, and after that encounter. All of these quantities are significant in determining the state of Uranus' magnetosphere and fluctuations thereof. (Author)