Longitude, λ_s, and latitude, ϕ_s, for angular velocity, ω, with respect to the fixed solar basis in Fig. 2, based on r_s(t₀) and b₃ = R(t₀) e₃ at initial time, t₀ . T is evaluated with |r_s| = 2 au and changing SSL from −45^∘ to 45^∘. Considered are the oblate ellipsoid, the near-prolate ellipsoid, the bilobed shape, the shape 67P with model A/f_EAF = 1/8, and the shape 67P with model α/f_EAF = 1/4.