Fig. 3

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Results of the 2017 April 09 event. The central plot displays the occultation chords projected in the sky plane for the main body (in blue), C1R (in green), and their uncertainties (in red). The black line is the best-fit ellipse to the C1R point, considering a fixed pole orientation (as determined in Sect. 4.1). Side panels: normalised radial ring profiles, projected in the ring plane, numbered as follows: Wabi Lodge (1), Weaver Rocks Lodge (2), and Hakos (3). Right panels: first detection (immersion) at each station. Left panels: second detections (emersion). As mentioned in Appendix A and shown in Appendix F, the Hakos light curve contains only the emersion detection of the ring due to bad weather conditions at immersion. The detections of W-shaped structures within the C1R are unambiguous.
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