Visibility amplitudes (top) and closure phases (bottom) of the data (gray error bars) and Gaussian models (colored diamonds) for all epochs, for both observing frequency bands (HI and LO), and plotted against the baseline length and quadratic sum of the three baseline lengths in triangles (u₁, u₂, and u₃), respectively. In both panels the bottom subpanels show residuals (i.e., differences between data and model) normalized by the uncertainties of each data point.