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Optical maturation of asteroid surfaces
Icarus, 2013Abstract Analysis of laboratory experiments simulating space weathering optical effects on atmosphereless planetary bodies reveals that the time needed to alter the spectrum of an ordinary chondrite meteorite to resemble the overall spectral shape and slope of an S-type asteroid is about ∼10 5 yr.
D.I. Shestopalov +2 more
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SPACE WEATHERING OF ASTEROID SURFACES
Annual Review of Earth and Planetary Sciences, 2004▪ Abstract Visible and near-infrared spectra of reflected sunlight from asteroid surfaces exhibit features that hold the promise for identifying surface mineralogy. However, the very surfaces that are observed by remote-sensing are also subject to impingement by micrometeoroids and solar wind particles, which are believed to play the dominant role in ...
C. Chapman
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The Impact Record on Asteroid Surfaces
2001The surfaces of main-belt and near-Earth asteroids have been carved over the age of the solar system by violent collisions with other asteroids. The craters and related features left behind can be used to interpret each asteroid's unique impact history, which depends on several factors: (i) the dynamical and physical properties of the asteroid (e.g ...
W. F. Bottke, R. Greenberg
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Asteroidal agglutinate formation and implications for asteroidal surfaces
Icarus, 1981The possible role of spallation on the free surfaces of target bodies in asteroid surface evolution in the presence of colliding bodies is considered. The ease of impact melt formation is discussed based on the results of shock recovery experiments, and a difference between collisions with dense, nonporous targets and with porous, particulate powders ...
Friedrich Hörz, Rand B. Schaal
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Asteroids: Surface Composition from Reflection Spectroscopy
Science, 1974Minerals partly composing the surfaces of 14 asteroids are determined by using asteroid reflectance spectra and optical properties of meteorites and other materials. Individual electronic absorption features are identified in the asteroids' spectra. The energies, relative strengths, and shapes of these features are interpreted by using laboratory and ...
T B, McCord, M J, Gaffey
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Natural Landing Simulations on Generated Local Rocky Terrains for Asteroid Cubic Lander
IEEE Transactions on Aerospace and Electronic Systems, 2022Recent missions reveal that rubble-pile asteroids usually have a wide distribution of bare rocks in various scales. The dynamical evolution of a lander interacting with such rough surfaces is still an open problem. This article investigates the influence
Xiangyuan Zeng +3 more
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Asteroid control through surface restructuring
Acta Astronautica, 2021Abstract A novel concept for asteroid orbit control by restructuring asteroid surfaces to manipulate albedo and respective radiation pressure effects is introduced. The method itself is propellant-less allowing for prolonged operation and permitting the adaption and even reversing reflection changes.
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SinGAN-Based Asteroid Surface Image Generation
Journal of Database Management, 2021While it is risky considering spacecraft constraints and unknown environment on asteroid, surface sampling is an important technique for asteroid exploration. One of the sample return missions is to seek an optimal landing site, which may be in hazardous terrain.
Yundong Guo +7 more
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Near-Earth Asteroids: Surface Structure and Shapes
Earth, Moon, and Planets, 1996The available data characterizing surface properties of near-Earth objects have been analyzed and compared with the data of large main belt asteroids. There are no evidences of the existence of solid rock surfaces among near-Earth objects.
I. N. Belskaya +2 more
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The surface properties of asteroids
Advances in Space Research, 2004Abstract The physical characteristics of asteroid surfaces are best defined by direct measurements, few of which currently exist. Thus, inferences from indirect observations must be made. From the limited visible and radar imagery heavy cratering marks the asteroid surfaces and the surfaces are rough at all scales.
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