Mass distribution and shift of fragments. (a) Cumulative mass distribution of fragments. The line corresponds to N(>m) ∝ m^−0.84, i.e. D = 2.52, and it is the fit for fragment masses in the range of 0.03–0.3 g. (b) Shift of fragments from the parent meteoroid in the antisolar direction as a function of mass. The error bars correspond to uncertainty intervals of 2σ. The blue curve corresponds to the theoretical displacement of fragments due to solar radiation pressure for a cluster age of 10.6 days if the ejection velocities were zero. The deviations of the fragment positions from this curve are caused by the projection of the non-zero ejection velocity into the solar/antisolar direction. If all ejection velocities were 0.39 m s⁻¹ in the direction of the ejection cone axis (i.e., 66° from the direction to the Sun), the theoretical dependence of the displacement on mass would follow the orange curve.