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The Highland Terrain Hopper (HOPTER): Concept and use cases of a new locomotion system for the exploration of low gravity Solar System bodies
Polish Acad Sci, Space Res Ctr, Bartycka St 18A, PL-00716 Warsaw, Poland.;Univ Nantes, Lab Planetol & Geodynam, CNRS UMR 6112, BP 92208, F-44322 Nantes 3, France.;OSUNA, CNRS, UMS 3281, Lyon, France..
Polish Acad Sci, Space Res Ctr, Bartycka St 18A, PL-00716 Warsaw, Poland.;Polish Acad Sci, Inst Geol Sci, Res Ctr Wroclaw, Podwale St 75, PL-50449 Wroclaw, Poland..
Polish Acad Sci, Space Res Ctr, Bartycka St 18A, PL-00716 Warsaw, Poland.;Astronika Sp Zoo, Bartycka St 18, PL-00716 Warsaw, Poland..
Polish Acad Sci, Space Res Ctr, Bartycka St 18A, PL-00716 Warsaw, Poland.;Astronika Sp Zoo, Bartycka St 18, PL-00716 Warsaw, Poland..
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2016 (English)In: Acta Astronautica, ISSN 0094-5765, E-ISSN 1879-2030, Vol. 121, p. 200-220Article in journal (Refereed) Published
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Abstract [en]

Comprehensive understanding of the principles governing the geological activity of the Earth was obtained in continental and oceanic mountains. It is not expected that the principles governing the overall geologic activity and evolution of other planetary bodies such as Mars will be understood if exploration is limited to nearly flat terrains, either imposed by the used exploration platform capabilities, the risk of getting stuck, or by the time required to cross the border of a landing ellipse. Surface exploration of mountains is additionally to be coupled to two- or three-dimensional geophysical surveys to correlate the surface observations with deeper processes. On the small bodies where ultra-low gravity prevails, the weight of wheel-driven platforms is not sufficient to generate the friction at the contact with the ground that is required to trigger motion of the rover relative to the ground. Under such circumstances, hopping is one of the mobility solutions. We present a new locomotion system, the hopter platform, which is adapted to these challenges on Solar System bodies having a gravity field lower than on Earth. The hopter is a robust, versatile and highly manoeuvrable platform based on simple mechanical concepts that accurately jumps to distances of metres to tens of metres and more, depending on the gravity field of the studied body. Its low mass of 10 kg (including up to 3 kg of miniaturised payload), makes it possible to simultaneously launch several hopters to work as a fractionated explorer at a very competitive cost. After reviewing the payload that may be placed onboard hopters, we illustrate the scientific capabilities of hopters and hopter networks in performing basic geologic observations at distinct study sites in a variety of geological environments, obtaining data along steep geological cross sections, surveying geophysical anomalies in the subsurface, prospecting resources, monitoring micro environments, meteorological events, and geodetic deformation, or characterizing dust activity on Mars, the Moon, and Phobos.

Place, publisher, year, edition, pages
2016. Vol. 121, p. 200-220
Keywords [en]
Planetary locomotion, Planetary geology, Geophysical surveying, Mars, Valles Marineris, Moon
National Category
Fusion, Plasma and Space Physics Astronomy, Astrophysics and Cosmology Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-283753DOI: 10.1016/j.actaastro.2015.12.042ISI: 000371838300020OAI: oai:DiVA.org:uu-283753DiVA, id: diva2:919718
Available from: 2016-04-14 Created: 2016-04-14 Last updated: 2017-11-30Bibliographically approved

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Thornell, Greger

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