Observations of interplanetary dust by the Juno magnetometer investigation

Mathias Benn, John Leif Jørgensen, Troelz Denver, Peter Brauer, Peter Siegbjørn Jørgensen, A. C. Andersen, J. E. P. Connerney, R. J. Oliversen, S. J. Bolton, S. M. Levin

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    One of the Juno magnetometer investigation's star cameras was configured to search for unidentified objects during Juno's transit en route to Jupiter. This camera detects and registers luminous objects to magnitude 8. Objects persisting in more than five consecutive images and moving with an apparent angular rate of between 2 and 18,000 arcsec/s were recorded. Among the objects detected were a small group of objects tracked briefly in close proximity to the spacecraft. The trajectory of these objects demonstrates that they originated on the Juno spacecraft, evidently excavated by micrometeoroid impacts on the solar arrays. The majority of detections occurred just prior to and shortly after Juno's transit of the asteroid belt. This rather novel detection technique utilizes the Juno spacecraft's prodigious 60 m2 of solar array as a dust detector and provides valuable information on the distribution and motion of interplanetary (>μm sized) dust.
    Original languageEnglish
    JournalGeophysical Research Letters
    Issue number10
    Pages (from-to)4701-4708
    Number of pages8
    Publication statusPublished - 2017

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    ©2017. The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution
    in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.


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