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Recent near Earth satellite flux data: contributions in the definition of the interplanetary flux at 1 AU heliocentric distance

Published online by Cambridge University Press:  27 February 2018

J. A. M. McDonnell
Affiliation:
Unit for Space Science and Astrophysics, University of Kent at Canterbury, Canterbury, Kent, United Kingdom, CT2 7NR
D. J. Gardner
Affiliation:
Unit for Space Science and Astrophysics, University of Kent at Canterbury, Canterbury, Kent, United Kingdom, CT2 7NR
N. McBride
Affiliation:
Unit for Space Science and Astrophysics, University of Kent at Canterbury, Canterbury, Kent, United Kingdom, CT2 7NR
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Abstract

Recently analysed hypervelocity impact data from retrieved satellites are summarised. Analyses of perforation data show that mean densities are low (around 1.5-2 g/cm 3), impact velocities are consistent with radar meteor observations and that high aspect ratio particles are not found. Mean data, for Fmax > 30 μm agrees well with the Grün et al. Interplanetary flux model, though there is evidence of a strong bias towards the Earth apex of motion direction. For Fmax < 30 μm the data at LDEF's altitude is dominated by space debris.

Type
VI. Dust Measurements from Earth Orbit
Copyright
Copyright © Astronomical Society of the Pacific 1996

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Recent near Earth satellite flux data: contributions in the definition of the interplanetary flux at 1 AU heliocentric distance
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