Composition and modal frequencies of hypervelocity particles less than 1 millimeter in diameter in low-Earth orbit

Details Composition and modal frequencies of hypervelocity particles less than 1 millimeter in diameter in low-Earth orbit Composition and modal frequencies of hypervelocity particles less than 1 millimeter in diameter in low-Earth orbit

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..101b&link_type=abstract

In Lunar and Planetary Inst., Twenty-fourth Lunar and Planetary Science Conference. Part 1: A-F p 101-102 (SEE N94-12015 01-91)

Computer Science

Craters, Hypervelocity Impact, Hypervelocity Projectiles, Long Duration Exposure Facility, Meteoritic Composition, Micrometeoroids, Residues, Flux (Rate), Particle Size Distribution, Substrates

Scientific paper

We have continued to systematically analyze the projectile residues associated with hypervelocity impact features on the surfaces of the 'Chemistry of Micrometeoroid Experiment' (CME) that was in low-Earth orbit (LEO) for 5.7 years aboard the Long Duration Exposure Facility (LDEF). Last year we reported on the systematic analysis, via SEM-EDX methods, of all craters greater than 20 microns in diameter on the collectors from LDEF's trailing edge and approximately 200 craters greater than 75 microns in diameter from the aluminum 1100 substrates from the forward-facing surfaces. This latter group represents less than 20 percent of all craters on the A11 collectors, because the particle flux is substantially higher for the forward-facing orientations relative to the trailing-edge surfaces. To date, we have analyzed some 600 craters on the A11 aluminum collectors, yet this report summarizes only 400 features, because not all of the results have been completely reduced and entered into our database.

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