Pre-atmospheric orbits of CM, C1-, and C2-ungrouped meteorites (Meier 2023; black crosses with error bars). Their maximum semimajor axis is well beyond the 3:1 mean-motion resonance (a ≲ 2.82 au) and their inclination is low (i ≲ 2°). For comparison, synthetic orbits of 1-m meteoroids from Veritas (top) and Astrid (bottom) are plotted, whenever an orbit is in the NEO region (a(1 + e) > 0.983 au Λ a(1 − e) < 1.3 au). Colours correspond to the lifetimes in the NEO region. It is difficult to scatter orbits from high → low inclinations, and vice versa. Low-inclination orbits also have much larger probability p_i of collision with the Earth. Nevertheless, the flux Φ = P_iN_neo from Veritas is larger than from Astrid, according to our model. Consequently, we favour Veritas as the main source of CM chondrites.