Voyager radio science observations of Neptune and Triton

Details Voyager radio science observations of Neptune and Triton Voyager radio science observations of Neptune and Triton

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989sci...246.1466t&link_type=abstract

Science (ISSN 0036-8075), vol. 246, Dec. 15, 1989, p. 1466-1473.

Astronomy and Astrophysics

Astronomy

163

Abundance, Neptune Atmosphere, Planetary Ionospheres, Radio Astronomy, Triton, Voyager 2 Spacecraft, Attitude Control, Electron Density (Concentration), Methane, Nereid

Scientific paper

Voyager 2 undertook radio science investigations of the Neptune and Triton masses and densities, as well as of their atmospheric and ionospheric vertical structures, the atmospheric composition and low-order gravitational harmonics of Neptune, and ring material characteristics. Upon probing the atmosphere of Neptune to a pressure level of about 500,000 Pa, the effects of a methane cloud region and of ammonia absorption below the cloud have become apparent. The tenuous neutral atmosphere of Triton produced distinct signatures in the occultation data; it is inferred that the Triton atmosphere is controlled by water-pressure equilibrium with surface ices.

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