Dust Measurements During Galileo's Approach to Jupiter and Io Encounter

  title={Dust Measurements During Galileo's Approach to Jupiter and Io Encounter},
  author={E. Gr{\"u}n and David P. Hamilton and Rebekah A. Riemann and Stanley F. Dermott and Hugo Fechtig and Bo Ake Sture Gustafson and Martha S. Hanner and Andr{\'e} Heck and Mih{\'a}ly Hor{\'a}nyi and Jochen Kissel and Harald Kr{\"u}ger and Bertil Anders Lindblad and D. Linkert and G. Linkert and Ingrid Mann and John McDonnell and G. E. Morfill and Carol A. Polanskey and G. Schwehm and Ralf Srama and Herbert A. Zook},
  pages={399 - 401}
About a hundred dust impacts per day were detected during the first week in December 1995 by Galileo during its approach to Jupiter. These impacts were caused by submicrometer-sized particles that were just above the detection limit. After the closest approach to Io on 7 December, impacts of these small particles ceased. This effect is expected for dust grains emitted from Io that exit the field of view of the instrument after the flyby. The impact rate of bigger micrometer-sized dust grains… 

Dust measurements in the Jovian magnetosphere

Dust measurements have been obtained with the dust detector onboard the Galileo spacecraft inside a distance of about 60RJ from Jupiter (Jupiter radius, RJ = 71,492 km) during two periods of about 8


Dust was observed in the Jovian magnetosphere with the dust detector onboard the Galileo spacecraft. Measurements have been obtained inside a distance of about 100Rj from Jupiter’s center (Jupiter

Solar Wind Magnetic Field Bending of Jovian Dust Trajectories

From September 1991 to October 1992, the cosmic dust detector on the Ulysses spacecraft recorded 11 short bursts, or streams, of dust. These dust grains emanated from the jovian system, and their

Io as a source of the jovian dust streams

Io's volcanoes, rather than impact ejecta, are the dust sources of the jovian dust streams, on the basis of periodicities in the dust impact signal.

Dust en-route to jupiter and the galilean satellites

Observations of Electromagnetically Coupled Dust in the Jovian Magnetosphere

We report on dust measurements obtained during the seventh orbit of the Galileo spacecraft about Jupiter. The most prominent features observed are highly time variable dust streams recorded

One year of Galileo dust data from the Jovian system: 1996



Constraints from Galileo observations on the origin of jovian dust streams

THE Ulysses spacecraft detected streams of sub-micrometre-sized dust particles as it approached Jupiter in 19921,2. Although interplanetary space was known to contain dust, the presence of discrete

Ejection of dust from Jupiter's gossamer ring

ONE of the most intriguing discoveries of the Ulysses mission so far has been the detection of periodic, collimated streams of high-velocity, submicrometre-sized dust particles emanating from

Electron Beams and Ion Composition Measured at Io and in Its Torus

Composition measurements through the torus showed that the spatial distributions of protons, oxygen, and sulfur are different, with sulfur being the dominant energetic ion at closest approach.

The dusty ballerina skirt of Jupiter

We suggest a model to explain the unexpected recurrent dust events that were observed during the Jupiter encounter by the dust detector on board the Ulysses spacecraft. This model is based on

Ulysses dust measurements near Jupiter.

Dust flux measurements give evidence of the recent rates of production from sources such as comets, asteroids, and moons, as well as the possible presence of interstellar grains.

Discovery of Jovian dust streams and interstellar grains by the Ulysses spacecraft

ON 8 February 1992, the Ulysses spacecraft flew by Jupiter at a distance of 5.4 AU from the Sun. During the encounter, the spacecraft was deflected into a new orbit, inclined at about 80° to the


  • 363, 144 (1993); J. Geophys. Res. 98,

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