Visualisation of confidence regions for geocentric quantities on the Kresáks’ diagram for two simulated meteors. In both panels, the parameters of the observed meteor were generated as υ_∞ = (65.7 ± 0.4) km s⁻¹, α = (153 ± 1)°, and δ = (5 ± 1)°. The corresponding nominal values and standard errors for υ_ɡ and ϵ_ɡ are reported as cyan error bars. The blue ellipses, from inner to outer, show the boundaries of the 1σ, 2σ, and 3σ confidence regions, and the red line plots the parabolic limit. The black dots represent the result of a bootstrap Monte Carlo error propagation for an ensemble of 300 repetitions. The simulation included a covariance matrix element for (υ_∞, α) of +0.3 for panel a and of −0.3 for panel b.