Capture of an olivine micrometeoroid by spacecraft in low-earth orbit

Details Capture of an olivine micrometeoroid by spacecraft in low-earth orbit Capture of an olivine micrometeoroid by spacecraft in low-earth orbit

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....9311943r&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 93, Oct. 10, 1988, p. 11943-11948.

Mathematics

Logic

12

Capture Effect, Meteoritic Damage, Micrometeoroids, Olivine, Electron Microscopy, Magnesium, Solar Maximum Mission

Scientific paper

Particulates associated with an impact feature in the solar maximum satellite MEB thermal control blanket are identified as magnesium-rich, Mg/Mg + Fe(2+) = 0.66 - 0.83, olivine and confirm that the impact feature was caused by an olivine micrometeoroid. At a relative impact velocity of about 7 km/s a considerable portion of the micrometeoroid was lost due to back splattering. Analytical electron microscope analysis of recovered particulates shows several degrees of mineralogical and chemical degradation such as mechanical fragmentation, melting, loss of sulfur and iron, and formation of Fe, Ni grains. The results indicate that recovery of information is sufficient to establish the character of the impacted micrometeoroid.

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