NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The chaotic rotation of HyperionUnder the assumption that the satellite is rotating about a principal axis that is normal to its orbit plane, a plot of spin rate-versus-orientation for Hyperion at the pericenter of its orbit has revealed a large, chaotic zone surrounding Hyperion's synchronous spin-orbit state. The chaotic zone is so large that it surrounds the 1/2 and 2 states, and libration in the 3/2 state is not possible. Rotation in the chaotic zone is also attitude-unstable. As tidal dissipation drives Hyperion's spin toward a nearly synchronous value, Hyperion necessarily enters the large chaotic zone, becoming attitude-unstable and tumbling. It is therefore predicted that Hyperion will be found to be tumbling chaotically.
Document ID
19840056314
Document Type
Reprint (Version printed in journal)
Authors
Wisdom, J. (California Univ. Santa Barbara, CA, United States)
Peale, S. J. (California, University Santa Barbara, CA, United States)
Mignard, F. (Centre d'Etudes et de Recherches Geodynamiques et Astronomiques Grasse, Alpes-Maritimes, France)
Date Acquired
August 12, 2013
Publication Date
May 1, 1984
Publication Information
Publication: Icarus
Volume: 58
ISSN: 0019-1035
Subject Category
ASTRONOMY
Funding Number(s)
CONTRACT_GRANT: NGR-05-010-062
Distribution Limits
Public
Copyright
Other