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Clouds of Spacecraft Debris Liberated by Hypervelocity Dust Impacts on Parker Solar Probe
Hypervelocity impacts on spacecraft surfaces produce a wide range of effects including transient plasma clouds, surface material ablation, and for some impacts, the liberation of spacecraft material as debris clouds. This study examines debris-producing impacts on the Parker Solar Probe spacecraft as it traverses the densest part of the zodiacal cloud: the inner heliosphere. Hypervelocity impacts by interplanetary dust grains on the spacecraft that produce debris clouds are identified and examined. Impact-generated plasma an ...
Malaspina, David; Stenborg, Guillermo; Mehoke, Doug; Al-Ghazwi, Adel; Shen, Mitchell; Hsu, Hsiang-Wen; Iyer, Kaushik; Bale, Stuart; de Wit, Thierry;
Published by: \apj Published on: jan
YEAR: 2022   DOI: 10.3847/1538-4357/ac3bbb
Laboratory Study of Antenna Signals Generated by Dust Impacts on Spacecraft
Space missions often carry antenna instruments that are sensitive to dust impacts, however, the understanding of signal generation mechanisms remained incomplete. A signal generation model in an analytical form is presented that provides a good agreement with laboratory measurements. The model is based on the direct and induced charging of the spacecraft from the collected and escaping fraction of free charges from the impact generated plasma cloud. A set of laboratory experiments is performed using a 20:1 scaled down model ...
Shen, Mitchell; Sternovsky, Zoltan; Horányi, Mihály; Hsu, Hsiang-Wen; Malaspina, David;
Published by: Journal of Geophysical Research (Space Physics) Published on: 04/2021
YEAR: 2021   DOI: 10.1029/2020JA028965
antenna instruments; cosmic dust; dust detection; Parker Data Used