Dust hazard of the cometary probe

Details Dust hazard of the cometary probe Dust hazard of the cometary probe

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979esasp.153...63f&link_type=abstract

In ESA Comet Halley Micrometeoroid Hazard Workshop p 63-65 (SEE N80-22200 12-91)

Physics

Halley'S Comet, Impact Damage, Meteoroid Hazards, Micrometeoroids, Space Probes, Spacecraft Shielding, Comet Nuclei, European Space Programs, Flyby Missions, Meteoroid Protection, Nasa Programs, Particle Size Distribution

Scientific paper

The probe through the coma of Comet Halley is hit by several thousands to several hundred thousands of dust particles per sq cm in the size range above .1 micrometers and 1 micrometer, respectively. With the relative velocity of 5 km/sec, heavy damage is to be expected. If one assumes a flythrough at 100 km distance from the nucleus, the probe is hit by particles up to 1 cm in diameter. The damage by 1 cm diameter particles is in the order of 10 cm penetration depth. The damage from smaller particles is less severe, but due to the increasing number of smaller particles, an erosional effect is expected. A multifoil shield is recommended for reducing the dust hazard.

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