Contents — A through F Dustbuster : A Proposed JIMO Instrument , for Jovian Satellite and Ring Dust Analyzer
نویسندگان
چکیده
A magnetometer instrument, based on a proposal submitted to the Europa Orbiter Announcement of Opportunity, is described. The primary science aim of the instrument would be to characterize the electromagnetic fields which are induced around Europa, Ganymede and Callisto. These signatures will then be interpreted in light of the internal structure of the moons. The design of the instrument consists of a 3-axis fluxgate sensor mounted on a deployable or stub boom. The magnetometer electronics are remote from the sensor and housed in a spacecraft body mounted electronics box. Functionally the instrument is very similar to the fluxgate sensor already flying on the Cassini mission, but in addition the instrument will be immune to the different and more severe radiation enviro nment. The magnetometer will allow the frequency spectrum of the induced magnetic fields to be probed allowing an investigation of the presence and properties of the electrically conducting material beneath the surface to be carried out. Magnetometer data in combination with radar data will enable a model of the vertical structure of the body to be derived, thereby allowing the interior of the moon to be probed. The existence of liquid water may have implications for the possible existence of life. In addition, the magnetospheric and source/atmosphere interactions in the vicinity of the moons will also be probed. Forum on Jupiter Icy Moons Orbiter (2003) 9081.pdf
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