Statistics – Applications
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993icar..103...49s&link_type=abstract
Icarus (ISSN 0019-1035), vol. 103, no. 1, p. 49-61.
Statistics
Applications
53
Asteroids, Mars Satellites, Mathematical Models, Shape Functions, Solar System, Moments Of Inertia, Planetary Surfaces, Satellite Surfaces, Solar System, Model, Physical Properties, Shape, Numerical Methods, Techniques, Mars, Satellites, Phobos, Mapping, Asteroids, Planets, Satellites, Procedure, Spacecraft Observations, Orbiters, Surface, Viking Missions, Features, Position (Location), Photometry, Lightcurve, Image Processing, Parameters, Topography, Science Aspects
Scientific paper
We describe a procedure that allows the efficient generation of numerical shape models for irregular Solar System objects, where a numerical model is simply a table of evenly spaced body-centered latitudes and longitudes and their associated radii. This modeling technique uses a combination of data from limbs, terminators, and control points, and produces shape models that have some important advantages over analytical shape models. Accurate numerical shape models make it feasible to study irregular objects with a wide range of standard scientific analysis techniques. These applications include the determination of moments of inertia and surface gravity, the mapping of surface locations and structural orientations, photometric measurement and analysis, the reprojection and mosaicking of digital images, and the generation of albedo maps. The capabilities of our modeling procedure are illustrated through the development of an accurate numerical shape model for Phobos and the production of a global, high-resolution, high-pass-filtered digital image mosaic of this Martian moon. Other irregular objects that have been modeled, or are being modeled, include the asteroid Gaspra and the satellites Deimos, Amalthea, Epimetheus, Janus, Hyperion, and Proteus.
Carcich Brian T.
Simonelli Damon P.
Thomas Peter C.
Veverka Joe
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