Distributions of inbound velocities for virtual objects associated with comet P/2019 LD₂ (ATLAS) (left) and with comet C/2018 F4 (PANSTARRS) (right). For P/2019 LD₂ the results of integrations 0.5 Myr (black), 1 Myr (violet), 3 Myr (blue), and 5 Myr (green) into the past are shown; for C/2018 F4, the results of the 1 Myr (violet) and 3 Myr (blue) integrations discussed in de la Fuente Marcos et al. (2019) are displayed. The bins were computed using the Freedman and Diaconis rule implemented in NumPy (van der Walt et al. 2011). Counts were used to form a probability density such that the area under the histogram sums to one. The vertical red line indicates the value − 0.6 km s⁻¹ discussed by Hands & Dehnen (2020).