Different calculated properties for the orbit of IRS 9 as a function of d_los. Left: v_∞,smbh increases as ∣d_los∣ increases, and so the reported value for the d_los = 0 pc case (v_∞,smbh = 134 ± 18 km s⁻¹) represents a lower limit. Right: r_peri as a function of d_los, with the color of each point corresponding to r_apo. The minimum values for r_peri and r_apo are obtained for the d_los = 0 pc case, which represents the “tightest” possible orbit for IRS 9 in the GC.