Parameter S in relation to S/N_A2 for all NEAs, as derived using Gaia FPR data. The green circles denote accepted values, characterised by S/N_A2 greater than 3 and S values below 2. This agrees with the scaled expected A₂ parameter for (99942) Apophis. The blue diamond indicates borderline cases for which the S/N_A2 ranges between 2.5 and 3 and S remains under 2. The red stars highlight the instances in which S/N_A2 falls below 3, and the thin orange diamonds represent objects fr which the S/N_A2 exceeds 3 and S surpasses 2. The plot features a horizontal demarcation at S = 2 and a vertical threshold at S/N_A2 = 3.