Refinement of the convex shape model and tumbling spin state of (99942) Apophis using the 2020-2021 apparition data

H. -J. Lee, M. -J. Kim, A. Marciniak +30

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 cou…