A 400 t_g window of a (u, v) cylinder plots (left) and the autocorrelations (right) from the fiducial Sgr A* model (MAD, a_* = 0.5, i = 30^∘, R_high = 160), measured at ρ = 3Gλ (top) and 10Gλ (bottom). The bounded region of the autocorrelation ξ > ξ_crit is surrounded by a black contour, and the measured pattern speed Ω_VA is marked by the dashed green line. Notice the size and slope of the central correlated peak changes with varying ρ.