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Greenstreet, S. Mottola, S. Zo{\\l}a, T. A. Lister, T. Kim, W. Og{\\l}oza, Y.-J. Choi","submitted_at":"2022-04-06T01:42:21Z","abstract_excerpt":"Context. The close approach of the near-Earth asteroid (99942) Apophis to Earth in 2029 will provide a unique opportunity to examine how the physical properties of the asteroid could be changed due to the Earth's gravitational perturbation. As a result, the Republic of Korea is planning a rendezvous mission to Apophis. Aims. Our aim was to use photometric data from the apparitions in 2020-2021 to refine the shape model and spin state of Apophis. Methods. 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