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  1. No Access

    Article

    Rosetta Radio Science Investigations (RSI)

    The Rosetta spacecraft has been successfully launched on 2nd March 2004 to its new target comet 67 P/Churyumov-Gerasimenko. The science objectives of the Rosetta Radio Science Investigations (RSI) experiment a...

    Martin Pätzold, Bernd Häusler, Kaare Aksnes, John D. Anderson… in Space Science Reviews (2007)

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    Chapter and Conference Paper

    The Distant Satellites of Uranus and the Other Giant Planets

    The steady improvement in our knowledge of the orbits of the two new Uranian satellites is described, including the roles of the 1984 prediscovery images and the 1998 recovery observations. The recognition of ...

    Brian G. Marsden, Gareth V. Williams… in Minor Bodies in the Outer Solar System (2000)

  3. Article

    Quantitative analysis of the Dermott–Gold theory for Uranus's rings

    DERMOTT and Gold1 have attempted to explain the locations of Uranus's rings in terms of resonances between ring particles and pairs of satellites, such that each particle librates about consecutive conjunctions o...

    KAARE AKSNES in Nature (1977)

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    Article

    de Sitter's theory ‘melts’ Europa's polar cap

    DURING the favourable passage of the Earth through the plane of Jupiter's equator in 1973 many observations of the mutual phenomena of the Galilean satellites were obtained. Since then there have been numerous...

    KAARE AKSNES, FRED A. FRANKLIN in Nature (1975)

  5. No Access

    Article

    On the choice of reference orbit, canonical variables, and perturbation method in satellite theory

    The author's second-order artificial satellite theory (Aksnes, 1970) is reviewed and compared with that of Kozai (1962). These theories differ in that the former makes use of: (1) an intermediate orbit, being ...

    Kaare Aksnes in Celestial mechanics (1973)

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    Article

    Polar Cap on Europa

    WE report here photoelectric observations of two occultations of Jupiter's satellite Europa (JII) by the satellite Io (JI). The reductions in the intensity during these events exceeds predicted values (K. A., ...

    ROBERT E. MURPHY, KAARE AKSNES in Nature (1973)

  7. No Access

    Article

    Orbit improvement from satellite imaging data obtainable from outer planet missions

    Equations of motion are established for a dynamical system in which a spacecraft flies close to and interacts with an outer planet and one or more of its satellites. For the computation of the state and mass p...

    Kaare Aksnes in Celestial mechanics (1973)

  8. No Access

    Article

    A note on ‘The main problem of satellite theory for small eccentricities, by A. Deprit and A. Rom, 1970’

    Kaare Aksnes in Celestial mechanics (1971)