Statistics of reconstructed enclosed mass curves resulting from ten fits per ground truth case (Eq. (5)) to different mock data. Left: Measurement uncertainties of 5μ″, 1 km s⁻¹, and initial guess drawn from IC₂ of Table 1. Right: Measurement uncertainties of 50μ″, 10 km s⁻¹, and initial guess drawn from IC₃ of Table 1 (right). Top: 300 mock observations over one orbital period. Middle: 3000 mock observations over one orbital period. Bottom: 3000 mock observations over ten orbital periods. Also shown are the means (dashed), standard deviations (shaded), and shell approximated ground truth profiles (solid).