Physics
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ssrv...60..317g&link_type=abstract
Space Science Reviews (ISSN 0038-6308), vol. 60, no. 1-4, May 1992, p. 317-340.
Physics
91
Galileo Project, Interplanetary Dust, Jupiter Atmosphere, Planetary Magnetospheres, Satellite-Borne Instruments, Electric Charge, Interplanetary Magnetic Fields, Particle Trajectories, Solar System
Scientific paper
The Galileo Dust Detector is intended to provide direct observations of dust grains with masses between 10 exp -19 and 10 exp -9 kg in interplanetary space and in the Jovian system, to investigate their physical and dynamical properties as functions of the distances to the sun, to Jupiter and to its satellites, and to study its interaction with the Galilean satellites and the Jovian magnetosphere. The investigation is performed with an instrument that measures the mass, speed, flight direction and electric charge of individual dust particles. It is a multicoincidence detector with a mass sensitivity 1 000 000 times higher than that of previous in situ experiments which measured dust in the outer solar system. The instrument weighs 4.2 kg, consumes 2.4 W, and has a normal data transmission rate of 24 bits/s in nominal spacecraft tracking mode. On December 29, 1989 the instrument was switched-on. After the instrument had been configured to flight conditions cruise science data collection started immediately. In the period to May 18, 1990 at least 168 dust impacts have been recorded. For 81 of these dust grains masses and impact speeds have been determined. First flux values are given.
Fechtig Hugo
Gruen Eberhard
Hanner Martha S.
Kissel Jochen
Lindblad Bertil-Anders
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