Mode lifetime calibration (top: radial modes; bottom: dipole modes) for the ϵ Indi observing window. The solid lines are the result of simulations (see text for details) and show frequency scatter vs S/N for a range of input mode lifetimes. The measured frequency scatter is represented by a black symbol in both panels, placed at a fiducial S/N = 3.5 level (corresponding to the typical S/N of radial modes near ν_max).