  Apollo meteoroid 2018 LA has become only the third natural object ever to be
discovered prior to causing a meteor airburst and just the second one to have
its meteorites recovered (at Botswana's Central Kalahari Game Reserve). Here,
we use the latest orbit determination of 2018 LA (solution date 18-July-2018)
to search for minor bodies moving in paths comparable to that of 2018 LA using
the D-criteria, which are metrics to study orbit similarity, and N-body
simulations. Our results further confirm the existence of a dynamical grouping
of asteroids that might be related to 2018 LA and show that the impactor could
be a recent fragment spawned by a larger object, the 550-m wide, potentially
hazardous asteroid (454100) 2013 BO73. Spectroscopic observations of 454100
during its next flyby with our planet (brightest at an apparent visual
magnitude of 18.4 on 2018 mid-November) may confirm or deny a putative similar
chemical composition to that of the recovered meteorites of 2018 LA.
