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HST Observations of Saturnian Satellites during the 1995 Ring Plane Crossings

✍ Scribed by Colleen A. McGhee; Philip D. Nicholson; Richard G. French; Katherine J. Hall

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 889 KB
Volume: 152
Category: Article
ISSN: 0019-1035
DOI: 10.1006/icar.2001.6635

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✦ Synopsis

Hubble Space Telescope (HST) observations during Saturn's ring-plane crossings allowed us to view saturnian satellites normally hidden to Earth-based observers in the glare of the rings. New measurements of Janus, Epimetheus, Prometheus, and Pandora have been combined to form revised orbital solutions using all three HST data sets. These measurements and orbit fits are presented, as well as similar fits for the brighter satellites Mimas, Tethys, Enceladus, Dione, and Rhea. Observations of the Lagrangian satellites Telesto, Calypso, and Helene are also reported. While most satellites were found to be close to their expected positions based on previous orbital solutions (Nicholson

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