4179 Toutatis ehk Toutatis on Apollo-tüüpi ja Alinda-tüüpi Marsi orbiidiga lõikuv asteroid.Tema orbiit on kaootiline, sest tal on Jupiteriga orbitaalresonants 3:1.
We wish to investigate how the presence of chaotic orbits evolves with time, and how their spatial distribution is associated with morphological features of the galaxy.