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- Title
Studies of Dust and Discharges around a Martian Rover with Onboard Hazard Analyses using Electromagnetic and Acoustic Wave Measurements.
- Authors
Masa-yuki YAMAMOTO; Mitsuteru SATO; Keigo ISHISAKA; Yukihiro TAKAHASHI; Kazunori OGOHARA; Masashi KAMOGAWA; Hideaki MIYAMOTO
- Abstract
A remote-sensing payload designed for a Mars rover, to observe Martian discharge events induced by dust devils and storms, is introduced. Low-frequency electromagnetic (E-M) and acoustic wave (AW) measurements have never been performed on Mars. Thus, to date, the occurrence of large-scale electrical discharges on Mars remains unknown. These measurements are important, due to the long propagation distances (>100 km) of these atmospheric events and the potential damage incurred by Martian rover systems and future human landings. Combining E-M and AW measurements, precise distance information on dust storms and dust devils can be obtained using the velocities of light and sound, because discharges are generated by electrostatic processes in a low-pressure dusty atmosphere. Moreover, by estimating electrical conductivity using E-M waves, information on underground moisture may be obtained. The rover will also record the sounds of roaring winds, shock waves caused by meteor entries, the possible eruption of ground gases, liquid flow, and the operating sounds of the rover itself − all historic firsts for Mars exploration.
- Subjects
ION rockets; REMOTE-sensing images; ELECTROMAGNETIC waves; MARS rovers; ACOUSTIC wave propagation
- Publication
Transactions of the Japan Society of Aeronautical & Space Sciences, Aerospace Technology Japan, 2016, Vol 14, Issue ists 30, p41
- ISSN
1884-0485
- Publication type
Article