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The Shape of Io from Galileo Limb Measurements

January 1, 1998

Galileo CCD images of the limb of Io provide improved data for determining the shape of this synchronously rotating satellite. The best ellipsoidal fit is within 0.3 km of the best equilibrium fit of 1829.7, 1819.2, 1815.8 km. The shape is consistent with substantial mass concentration in a core and with gravity measurements from tracking of the Galileo spacecraft. The surface of Io is largely plains and isolated peaks, with little long-wavelength topography over 1 km in amplitude. ?? 1998 Academic Press.

Publication Year 1998
Title The Shape of Io from Galileo Limb Measurements
DOI 10.1006/icar.1998.5987
Authors P. C. Thomas, M. E. Davies, T.R. Colvin, J. Oberst, Peter Schuster, G. Neukum, M. H. Carr, A. McEwen, G. Schubert, M. J. S. Belton
Publication Type Article
Publication Subtype Journal Article
Series Title Icarus
Index ID 70020137
Record Source USGS Publications Warehouse