Choosing antenna aimpoints during occultations - A simple method for GalileoAttempts have been made to design the trajectory of the Galileo orbiter so that it passes behind Jupiter, as viewed from earth, as many times as possible during the mission. During this type of pass, or occultation, the thick Jovian atmosphere acts as a lens, refracting a portion of the radio signal from the spacecraft toward earth. A method for calculating antenna aiming vectors during occultations is presented. This method meets the necessary accuracy requirements while offering a reduction in terms of complexity and usage of computer resources.
Document ID
19890025309
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wolf, Aron A. (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking