Global limb fit of (28978) Ixion obtained by combining the chord extremities from all multi-chord stellar occultations observed between 2020 and 2023. Each colour and marker shape corresponds to a different event (see the legend). The dashed black curve shows the best-fitting ellipse derived from the global χ² minimisation, while the grey-shaded region represents the 1σ uncertainty envelope of the global limb solution. Error bars represent the projected uncertainties of the chord extremities in the f–g plane (in kilometres). The black x marks the limb-centred reference frame, and the arrows indicate the celestial north (N) and east (E) directions. The data used in this figure are available in Kilic (2025b).