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Hypervelocity impact in low earth orbit: finding subtle impactor signatures on the Hubble Space Telescope

Kearsley, A T, Colaux, J L, Ross, D K, Wozniakiewicz, P J, Gerlach, L, Anz-Meador, P, Griffin, T, Reed, B, Opiela, J, Palitsin, V V , Grime, G W, Webb, R P, Jeynes, C, Spratt, J, Salge, T, Cole, M J, Price, M C and Burchell, M J (2017) Hypervelocity impact in low earth orbit: finding subtle impactor signatures on the Hubble Space Telescope In: 14th Hypervelocity Impact Symposium 2017, HVIS2017, 24-28 Apr 2017, Canterbury, Kent, UK.

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Abstract

Return of materials from the Hubble Space Telescope (HST) during shuttle orbiter service missions has allowed inspection of large numbers of hypervelocity impact features from long exposure at about 615 km altitude in low Earth orbit (LEO) [1,2]. Here we describe the application of advanced X-ray microanalysis techniques on scanning electron microscopes (SEM), microprobes and a 2 MV Tandetron, to nearly 400 impacts on the painted metal surface of the Wide Field and Planetary Camera 2 (WFPC2) radiator shield [3,4]. We identified artificial Orbital Debris (OD) and natural Micrometeoroid (MM) origins for small [5] and even for larger particles [6], which usually may leave little or no detectable trace on HST solar arrays, as they penetrate through the full cell thickness [2,7].

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Kearsley, A T
Colaux, J Lj.colaux@surrey.ac.uk
Ross, D K
Wozniakiewicz, P J
Gerlach, L
Anz-Meador, P
Griffin, T
Reed, B
Opiela, J
Palitsin, V VV.Palitsin@surrey.ac.uk
Grime, G WG.Grime@surrey.ac.uk
Webb, R P
Jeynes, Cc.jeynes@surrey.ac.uk
Spratt, J
Salge, T
Cole, M J
Price, M C
Burchell, M J
Date : 17 October 2017
DOI : 10.1016/j.proeng.2017.09.746
Copyright Disclaimer : © 2017 The Author(s). Published by Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Hubble Space Telescope; Orbital debris; Micrometeoroids; Microanalysis
Additional Information : Part of special issue: 14th Hypervelocity Impact Symposium 2017, HVIS2017, 24-28 April 2017, Canterbury, Kent, UK
Depositing User : Clive Harris
Date Deposited : 03 Sep 2018 12:44
Last Modified : 03 Sep 2018 12:44
URI: http://epubs.surrey.ac.uk/id/eprint/849182

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