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Cassini in the Shadow of Saturn

June 10, 2011;

The Cassini spacecraft traversed the shadow of Saturn from 12:11 pm to 1:08 pm (UTC) on July 10th, 2011. Most remarkable about this event is that it coincided with a ring plane crossing. The radial distance from the center of Saturn was 4.7 Saturnian radii, close to the orbit of Enceladus. This moon is the source of a dusty ring, called E-Ring, for fountains of ice strew tiny particles along its way. The illumination conditions in the shadow lead to variable plasma states, which, in turn, induce different electrical charges. The Cosmic Dust Analyser (CDA) made specific measurements of negatively charged dust grains with high abundances. The data are currently analysed.