Probability of having at least one SN event as a function of distance, evaluated over three different ¹⁰Be anomaly time windows to assess the impact of systematic uncertainties on geological age dating. Blue squares correspond to the time window used in this study ([11.5, 10.1] Myr ago), based on Koll et al. (2025). Yellow circles represent the older time window ([12.0, 10.6] Myr ago), and purple diamonds the younger one ([11.0, 9.6] Myr ago). The left panel shows the total probability derived from all clusters. The right panel shows the probabilities for ASCC 20 (top) and OCSN 61 (bottom).