Period spacing pattern of UBC1-106. The top panel shows the periodogram with the modelled pattern as lines. Bottom: fit (grey line) to the period spacing pattern including the five prograde dipole modes of consecutive radial orders n = 10, 11, 12, 13, 14 (filled circles). The open circles are additional modes with significant frequency that might belong to the pattern as well, but this is uncertain from the current TESS data. The markers are placed at the mean position between the detected signals and hence fall in between the modes marked in the upper panel.