Fig. 4. The figure shows the simplified movement network reached through a block model of the Main Component with three structurally equivalent positions (Blocks 1–3). The blocks were dubbed core, semi-core, and periphery position, respectively, and contained the following SMOs: Block 1 = [N16, N37, N60]; Block 2 = [N9, N25, N31]. Block 3 contained all 41 other SMOs.