Eccentric features in Saturn's outer C ring

Details Eccentric features in Saturn's outer C ring Eccentric features in Saturn's outer C ring

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...72..437p&link_type=abstract

Icarus (ISSN 0019-1035), vol. 72, Nov. 1987, p. 437-467.

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Planetology, Saturn Rings, Collisions, Occultation, Polarimeters, Resonance, Voyager 1 Spacecraft, Voyager 2 Spacecraft, Saturn, Rings, C Ring, Features, Eccentricity, Inclination, Radius, Spacecraft Observations, Voyager Missions, Ringlets, Physical Properties, Width, Gaps, Resonance, Models, Amplitude, Iss Instrument, Depth, Pps Instrument, Photopolarimetry, Rss Instrument, Optical Properties, Perturbations, Calculations, Gravity Effects, Parameters, Collisions, Satellites, Mimas, Pandora, Prometheus, Sha

Scientific paper

A systematic search has been made for as yet unrecognized eccentric and inclined features in Saturn's outer C ring. The radii of all sharp-edge features in the outer C ring were measured in Voyager data consisting of six high-resolution images, the Photopolarimeter occultation data, and the Radio Science λ3.6-cm occultation data corrected for the effects of diffraction. Besides the well-known Maxwell ringlet at 87,491 km (1.450 RS), whose eccentric shape and kinematics have already been studied, two other narrow ringlets at 88,716 km (1.470 RS), and 90,171 km (1.495 RS) have been found to be demonstrably eccentric. The former has a mean width of ≡16 km and is located within a gap ≡30 km wide. The latter has a mean width of ≡62 km and is only partially isolated: its outer edge is defined by a gap ≡15 km wide.

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