Same as Fig. A.3, but for the newly discovered SPB star SBL283. The detected frequencies are f₁ = 1.6694d^-1, f₂ = 0.249d^-1, f₃ = 1.4688d^-1, and f₄ = 2.9952d^-1, with errors from σ_f1 = 0.0002d^-1 to σ_f4 = 0.0006d^-1. The theoretical amplitude ratios shown here were calculated for a 5M_⊙ star. If one also allows for an uncertainty in mass, only the l = 1 modes match the observations well.