Observation and reduction of mutual events in the solar system

Benoît Noyelles, Valéry Lainey, Alain Vienne

    Research output: Contribution in Book/Catalog/Report/Conference proceedingChapter


    Mutual event observations started in the early 1970s with the Galilean satellites. These observations were needed because of the Voyager spacecraft future arrival. Since 1979, IMCCE has organized observational campaigns for the Galilean satellites (called PHEMU), and since 1995 for the Saturnian satellites (also called PHESAT). Meanwhile, the reduction techniques have been greatly improved. Mutual event observations are one of the most accurate methods for obtaining positions of natural satellites, useful for detecting tidal effects. Hence mutual events of Jovian and Saturnian natural satellites are regularly observed around the world. This paper aims to describe mutual events and the advantages of this kind of observation besides the classical astrometric ones.
    Original languageEnglish
    Title of host publicationTransits of Venus: New Views of the Solar System and Galaxy
    Subtitle of host publicationProceedings of IAU Colloquium #196, held 7-11 June, 2004 in Preston, U.K..
    PublisherCambridge University Press
    Number of pages8
    Publication statusPublished - 2005


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