(a) Color map of the stability parameter μ (Eq. (1)) over the 3σ uncertainty range in mass (M) and mean equatorial radius (r_eq). The black box encloses the 1σ uncertainty, and the black dot shows the nominal values (M_P, r_eqP) (see Table 1). (b) Relation between μ and the bulk density ρ. (c) M-r_eq combinations that satisfy μ = 1 (Eq. (1); colored line). The blue segment falls within the 1σ box. The dashed gray lines mark the minimum and maximum r_eq (385 m and 393 m, respectively) that fulfill the condition within 1σ.