Novel method for the Computation of In-Orbit Collision Probability by Multilevel Splitting and Surrogate Modelling - Sztamfater Garcia, Yannick; Sanjurjo Rivo, Manuel; Miguez Arenas, Joaquin; Escribano Blazquez, Guillermo (Sci Tech / AIAA Science and Technology Forum and Exposition (AIAA SciTech Forum), 2024)