MCMC analysis for the reference model with χ² = 1553, constrained by SKY, RV, ETV, ECL, SED, SED2 datasets. The corner plot shows uncertainties and correlations of 30 parameters, which were sampled with 64 walkers, 1000 iterations, with 500 burn-in steps. The highest-probability model is plotted (green). Specifically, m_sum = 9.572 ± 0.023 M_⊙, q₁ = 0.949 ± 0.001, q₂ = 0.851 ± 0.004, q₃ = 0.176 ± 0.001, P₁ = 7.14730 ± 0.00010 d, log e₁ = −2.835 ± 0.014, i₁ = 87.050 ± 0.204°, Ω₁ = 328.727 ± 0.143°, ϖ₁ = 113.833 ± 0.646°, λ₁ = 58.676 ± 0.144°, P₂ = 145.779 ± 0.005 d, log e₂ = −0.682 ± 0.003, i₂ = 86.753 ± 0.120°, Ω₂ = 328.575 ± 0.133°, ϖ₂ = 340.150 ± 0.666°, λ₂ = 63.402 ± 0.223°, P₃ = 18803.7 ± 68.1 d, log e₃ = −0.242 ± 0.001, i₃ = −23.899 ± 0.157°, Ω₃ = 101.493 ± 0.642°, ϖ₃ = 117.655 ± 0.196°, λ₃ = 148.337 ± 0.088°, T₁ = 10520 ± 39 K, T₂ = 10369 ± 77 K, T₃ = 14060 ± 107 K, log g₁ = 4.366 ± 0.019, log g₂ = 4.352 ± 0.015, log g₃ = 4.302 ± 0.008, γ = 10.132 ± 0.070 km s⁻¹, d = 65.951 ± 0.112 pc. These 1-σ uncertainties are considered local and small, compared to global ones in Table 1, because of some systematics and tension remained in the model.