Relative orbit of a compact object in LS I +61° 303 around Be star (yellow circle at the origin), which lies at the ellipse focus. The orbital parameters are taken from Table 4. The red dashed line is the major axis of the orbit. The black dots on the ellipse are spaced by the Δϕ = 0.1. Because of a 180° degeneracy in λ_p, the orbit can be also rotated by 180°. Left panel: orbit for constrained orientation relative to the decretion disk plane with Ω = θ_int ± 10°. Right panel: orbit assuming free Ω.