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Selection and Characteristics of the Dragonfly Landing Site near Selk Crater, Titan

Abstract : The factors contributing to the initial selection of a dune site near the Selk impact structure on Titan as the first landing site for the Dragonfly mission are described. These include arrival geometry and aerodynamic/ aerothermodynamic considerations, illumination, and Earth visibility, as well as the likely presence of exposed deposits of water-rich material, potentially including materials where molten ice has interacted with organics. Cassini observations of Selk are summarized and interpreted: near-infrared reflectance and microwave emission data indicate water-rich materials in and around the crater. Radar topography data shows the rim of Selk to have slopes on multi-km scales reaching only ∼2°degrees, an order of magnitude shallower than early photoclinometric estimates.
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https://hal-insu.archives-ouvertes.fr/insu-03135984
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Submitted on : Tuesday, February 9, 2021 - 1:27:10 PM
Last modification on : Thursday, February 11, 2021 - 3:28:57 AM

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Ralph Lorenz, Shannon Mackenzie, Catherine Neish, Alice Le Gall, Elizabeth Turtle, et al.. Selection and Characteristics of the Dragonfly Landing Site near Selk Crater, Titan. The Planetary Science Journal, IOP Science, 2021, 2 (1), pp.24. ⟨10.3847/PSJ/abd08f⟩. ⟨insu-03135984⟩

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