Evolution of Euler angles for models A (blue), B (red), and C (green). The plots show the evolution of Euler angles ϕ, θ, and ψ within a month in different years. All three angles are similar for all three models in the years 2013, 2021, and 2029 because they are separated by 8 years. The Euler angles, and thus the orientation of the models, differ for epochs between these years (e.g., March 2027).