Notes. The beacon central longitudes (λ_b) were estimated following the beacon drift rate presented in Section 3.1.3. The beacon longitudinal extensions (Δλ_b) were calculated from the thermal contour at 160 K at the 2 mbar level from the Cassini/CIRS longitude-pressure thermal fields presented in Section 3.1 and in Fig. A.1. The beacon latitudinal extensions (Δλ_b) were estimated in the same method for the two windows of 2012. For the first window, we deduced the beacon latitudinal extension from the IRTF/TEXES observations of Fouchet et al. (2016). For the last window only (January–February 2013), as the latitude-pressure thermal field was not measured, the beacon latitudinal data are taken as upper limits from the previous window in July–August 2012. The lack of knowledge on this window is depicted by a ‘?’ symbol. The beacon central latitudes (φ_b) are deduced from the middle of the latitudinal extension. The beacon surface area S_b is defined from the thermal contour at 160 K at the 2 mbar level, from the final 3D thermal fields built in Section 3.1.