Speckle interferometry of asteroidsSteward Observatory's two-dimensional power spectrum signature analysis of speckle interferometry observations is summarized. Results for six asteroids are presented. The poles and triaxial ellipsoid dimensions of 4 Vesta, 433 Eros, 511 Davida, and 532 Herculina have been previously reported. New results for 2 Pallas and 29 Amphitrite are given, as well as further results for Vesta. Image reconstruction is ultimately required to minimize biasing effects of asteroid surface features on the simpler power spectrum analysis. Preliminary imaging results have been achieved for Vesta and Eros, and images for these two are displayed. Speckle interferometry and radiometry diameters are compared, and diameters from the two occultations of Pallas are addressed.
Document ID
19900039955
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Drummond, Jack D. (Arizona Univ. Tucson, AZ, United States)
Hege, E. Keith (Arizona, University Tucson, United States)