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Searching for codes credited to 'Visser, Paul Martijn'

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[ascl:2211.002] KC: Analytical propagator with collision detection for Keplerian systems

The analytic propagator Kepler-Collisions calculates collisions for Keplerian systems. The algorithm maintains a list of collision possibilities and jumps from one collision to the next; since collisions are rare in astronomical scales, jumping from collision to collision and calculating each one is more efficient than calculating all the time steps that are between collisions.