The quality function of the period fits in terms of the effective temperature for the PG 1159 sequences with different stellar masses (in solar units) corresponding to the case in which all the observed periods are assumed to be associated to dipole (ℓ = 1) modes. We note the presence of a strong minimum corresponding to M_⋆ = 0.589 M_⊙ and T_eff = 117 560 K. The vertical dashed line is the spectroscopic T_eff of TIC 333432673 (120 000 K) and the gray zone depicts its uncertainties (±10 000 K).