Notes. Orbital elements are osculating, considering a central star with the total mass of the system, i.e., m_bin[M_⊙] = M₀ + M₁ = 0.78 + 0.43 = 1.21 (O’Donoghue et al. 2003); the Semi-major axis, a, and companion mass, m_P, were calculated assuming the same orbital inclination as the binary, i = 75.5º (O’Donoghue et al. 2003). The errors for the quadratic fit are not calculated because the residuals doubled the corresponding ones from linear ephemeris.