2D maps of V² (colors) are shown for each source as a function of observed uv coordinates. The point size is proportional to its signal-to-noise ratio. All sources are partially resolved (on average, lighter colors closer to the origin), without clear evidence of elongation (systematic variation of V² with position angle), except potentially for NGC 3783. The inner and outer dashed circles show baseline resolutions of 10 and 4 mas.