Two differentiated large icy satellites, adding up to about the mass of Titan, colliding at low initial relative velocity and an impact angle of 75°. They are coded by color, with 50 wt% ice, over 35 wt% rock, over 15 wt% iron. The outcome in this case is a 'simple' merger, spinning off spiral arms that clump into icy bodies ~100 to ~1000 km diameter. Some of these clumps escape, becoming moons of their own for some period of time; others remain bound to the final merged body.

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