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The chemistry of micrometeoroid and space debris remnants captured on Hubble Space Telescope solar cells

Graham, G.A.; McBride, N.; Kearsley, A.T.; Drolshagen, G.; Green, S.F.; McDonnell, J.A.M.; Grady, M.M. and Wright, I.P. (2001). The chemistry of micrometeoroid and space debris remnants captured on Hubble Space Telescope solar cells. International Journal of Impact Engineering, 26(1-10) pp. 263–274.

DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1016/S0734-743X(01)00087-2
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Abstract

Prior to the retrieval in 1993 from low Earth orbit (LEO), the "—V2" Solar Array wing of the Hubble Space Telescope was exposed to hypervelocity impacts (micrometre to millimetre scale) from both micrometeoroids and space debris. The initial survey of the damage (100–3500μm diameter sized craters) identified that micrometeoroid remnants dominated the flux in the 100–1000μm size regime, with debris dominating>1000μm. These residues were composed of remnants of silicate minerals, calcite, metal sulfides and metals that often appeared as complex poly-mineralic melts within melt pits. A further survey of 10–100μm diameter craters identified that the most common chemistry was space debris with the crossover from meteoroids to debris being at around 30μm DCO. Residues include remnants of specialised steels and paint fragments but the dominant type is aluminium and aluminium oxide, which are almost certainly remnants of solid rocket motor operations. It is found that the relative contribution of debris as a function of size, agrees remarkably with a prediction derived using flux data from Long Duration Exposure Facility and a meteoroid model.

Item Type: Journal Article
ISSN: 0734-743X
Extra Information: Some of the symbols may not have transferred correctly into this bibliographic record.
Keywords: Space Debris; Micrometeoroid; Hypervelocity Impacts
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 3143
Depositing User: Users 6044 not found.
Date Deposited: 29 Jun 2006
Last Modified: 02 Dec 2010 19:49
URI: http://oro.open.ac.uk/id/eprint/3143
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