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Dispersive Doppler measurement of the electron content of the torus of IoAs Voyager 1 made its swing-by of Io, it passed through and behind the satellite's plasma torus. The phase paths of the coherent 13 cm and 3.6-cm wavelength signals transmitted from the spacecraft were shortened differentially by the plasma, resulting in the observation of a dispersive Doppler signature in the signals received at the NASA/Jet Propulsion Laboratory (deep space network) stations. Ray path integration through three different models of the electron distribution of the torus of Io (Warwick et al. 1979; Birmingham et al. 1981; Bagenal et al., 1981) have been performed. The results of the integrations are compared with the dispersive Doppler data.
Document ID
19820028811
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Levy, G. S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Green, D. W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Royden, H. N.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wood, G. E.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Tyler, G. L.
(Stanford University Stanford, CA, United States)
Date Acquired
August 10, 2013
Publication Date
September 30, 1981
Publication Information
Publication: Journal of Geophysical Research
Volume: 86
Subject Category
Lunar And Planetary Exploration
Accession Number
82A12346
Funding Number(s)
CONTRACT_GRANT: NAS7-100
CONTRACT_GRANT: JPL-953618
Distribution Limits
Public
Copyright
Other

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