Figure 8.

Acceptable and test observation residual deviations in time domain. Acceptable deviations residuals represent deviations in properly performed swings attributed to noise and/or different artefacts. The deviation residuals for test observations 1–5, for which improper motion was detected, considerably exceed acceptable deviations residuals. Consistently positive values in the second half of the considered swing interval for test observations 1–4 indicate a typical improper motion in the associated swings.