Microparticles in the geostationary orbit (GORID experiment)

Drolshagen, G.; Svedhem, H.; Grün, E.; Grafodatsky, O. S.; Prokopiev, U.

doi:10.1016/s0273-1177(98)00239-7

Cited by 17 publications

(4 citation statements)

References 3 publications

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“…A practically identical twin instrument was operated on board the Galileo spacecraft, which was launched in 1989, and between 1995 and 2003 it was the first Jupiter-orbiting spacecraft (Grün et al 1992a). A third identical instrument (GORID), an engineering model of the Ulysses sensor, was operational in geostationary orbit on the Express telecommunication satellite between 1997 and 2002 (Drolshagen et al 1999). Finally, the Cassini spacecraft, launched in 1997, carries the Cosmic Dust Analyzer (CDA) which is an upgrade of the Ulysses instrument that is equipped with a time-of-flight mass spectrometer ).…”

Section: The Ulysses Dust Instrumentmentioning

confidence: 99%

SIXTEEN YEARS OFULYSSESINTERSTELLAR DUST MEASUREMENTS IN THE SOLAR SYSTEM. I. MASS DISTRIBUTION AND GAS-TO-DUST MASS RATIO

Krüger

Strub

Grün

et al. 2015

ApJ

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In the early 1990s, contemporary interstellar dust penetrating deep into the heliosphere was identified with the in-situ dust detector on board the Ulysses spacecraft. Between 1992 and the end of 2007 Ulysses monitored the interstellar dust stream. The interstellar grains act as tracers of the physical conditions in the local interstellar medium surrounding our solar system.Earlier analyses of the Ulysses interstellar dust data measured between 1992 and 1998 implied the existence of a population of 'big' interstellar grains (up to 10 −13 kg; Landgraf et al. 2000;Frisch et al. 1999). The derived gas-to-dust-mass ratio was smaller than the one derived from astronomical observations, implying a concentration of interstellar dust in the very local interstellar medium .In this paper we analyse the entire data set from 16 years of Ulysses interstellar dust measurements in interplanetary space. This paper concentrates on the overall mass distribution of interstellar dust. An accompanying paper investigates time-variable phenomena in the Ulysses interstellar dust data, and in a third paper we present the results from dynamical modelling of the interstellar dust flow applied to Ulysses (Sterken et al. 2015). We use the latest values for the interstellar hydrogen and helium densities, the interstellar helium flow speed of v ISM∞ = 23.2 km s −1 , and the ratio of radiation pressure to gravity, β, calculated for astronomical silicates. We find a gas-to-dust-mass ratio in the local interstellar cloud of R g/d = 193 +85 −57 , and a dust density of (2.1 ± 0.6) × 10 −24 kg m −3 . For a higher inflow speed of 26 km s −1 , the gas-todust-mass ratio is 20% higher, and, accordingly, the dust density is lower by the same amount. The gas-to-dust mass ratio derived from our new analysis is compatible with the value most recently determined from astronomical observations (Slavin and Frisch 2008). We confirm earlier results that the very local interstellar medium contains 'big' (i.e. ≈ 1 µm-sized) interstellar grains. We find a dust density in the local interstellar medium that is a factor of three lower than values implied by earlier analyses.

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Section: The Ulysses Dust Instrumentmentioning

confidence: 99%

SIXTEEN YEARS OFULYSSESINTERSTELLAR DUST MEASUREMENTS IN THE SOLAR SYSTEM. I. MASS DISTRIBUTION AND GAS-TO-DUST MASS RATIO

Krüger

Strub

Grün

et al. 2015

ApJ

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“…The Cassini spacecraft en route to Saturn crossed the interplanetary space between Jupiter and Saturn after its encounter with Jupiter on 31 December 2000 and before entering the Saturnian system on 1 July 2004, during Saturn Orbit Insertion (SOI). The Cassini spacecraft carries the Cosmic Dust Analyzer (CDA) instrument, successor of the dust instruments on board Ulysses, Galileo, and Gorid [ Grün et al , 1992b, 1992a; Drolshagen et al , 1999]. Like those instruments, CDA is able to determine the impact velocity and mass of the impactors.…”

Section: Introductionmentioning

confidence: 99%

Cassini/Cosmic Dust Analyzer in situ dust measurements between Jupiter and Saturn

Altobelli¹,

Dikarev

Kempf

et al. 2007

J. Geophys. Res.

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[1] We report an analysis of the Cosmic Dust Analyzer data obtained during the interplanetary cruise of the Cassini spacecraft between Jupiter and Saturn. The data cover the time period between the Jupiter flyby and the Saturn orbit insertion. Seventeen dust particles on bound and unbound (hyperbolic) orbits were also detected, with sizes in the submicrometer to the micrometer range. Our measurements are compared with the Pioneer dust data obtained 30 years ago and model predictions. Particles on bound orbits have low eccentricities and low inclinations. Possible sources are short-period Jupiter family comets and circumsolar dust. The impactors on hyperbolic orbits were identified as being most likely interstellar dust (ISD) grains with a radius of %0.4 mm. The corresponding flux of %2 Â 10 À5 m À2 s À1 is in a very good agreement with the ISD flux measurements performed by the Ulysses spacecraft over the same time period.

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“…doi:10.1016/j.asr.2005.03.060 a few cm); however measurements of micron to mm sized particles are generally obtained from in situ sampling. The meteoroid and debris populations can be investigated by active impact experiments (e.g., the Geostationary Orbit Impact Detector GORID; Drolshagen et al, 1999), or from the analysis of returned spaceflown surfaces. During the last three decades, several surfaces designed to sample the low Earth orbit impact environment have been deployed in space as dedicated experiments, and then returned to Earth to provide a wealth of information on the solid particle populations.…”

Section: Introductionmentioning

confidence: 99%

Hypervelocity impacts on HST solar arrays and the debris and meteoroids population

Moussi

Drolshagen

McDonnell

et al. 2005

Advances in Space Research

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Microparticles in the geostationary orbit (GORID experiment)

Cited by 17 publications

References 3 publications

SIXTEEN YEARS OFULYSSESINTERSTELLAR DUST MEASUREMENTS IN THE SOLAR SYSTEM. I. MASS DISTRIBUTION AND GAS-TO-DUST MASS RATIO

SIXTEEN YEARS OFULYSSESINTERSTELLAR DUST MEASUREMENTS IN THE SOLAR SYSTEM. I. MASS DISTRIBUTION AND GAS-TO-DUST MASS RATIO

Cassini/Cosmic Dust Analyzer in situ dust measurements between Jupiter and Saturn

Hypervelocity impacts on HST solar arrays and the debris and meteoroids population

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