Simultaneous fits of the data (black dots) by synthetic light curves (blue lines), based on the temperature profile displayed in Fig. 10 (black line) and the pressure boundary condition p₁₄₀₀ = 1.18 µbar (Table 4). The green curves are the residuals of the fits. The lower and upper horizontal dotted lines mark the zero-flux level and the total star plus Triton unocculted flux, respectively. We also note that the three bottom light curves are plotted at a different vertical scale from the others to accommodate the presence of a strong central flash. The stations are sorted from left to right and top to bottom from the northernmost track (St Caprais) to the southernmost track (Calar Alto; see next figure). Each panel has a duration of five minutes and is centred around the time of closest approach (or mid-occultation time) of the station to Triton’s shadow centre, as indicated under the lower left panel in each block of six light curves. For reference, the vertical red line marks the time 23:48 UTC. The stations with exposure times of less than 1 s have been smoothed to have a sampling time as close as possible to 1 s, for easier S/N comparison of the various datasets. We note that in this approach, the sampling of the Constância, Le Beausset, and Felsina Observatory light curves (0.64 s) is kept at its original value so that full resolution versions of the corresponding strong flashes at those stations are displayed here. The same kinds of plots showing all the stations, but with the flashes excluded from the fits, are displayed in Fig. C.1.