K_p−Δυ_sys map of the pre-eclipse Fe signal, with the detection significance computed using a region where K_P>210 km s⁻¹ and Δυ_sys< − 40 km s⁻¹, avoiding the planetary signal near the expected K_p and Δυ_sys. While choosing a different region reduced the detection significance to ≈5σ, Fe remains significantly detected, with the alpha detection significance constrained to be non-zero at more than 4.2σ, supporting the robustness of the Fe signal.