  We calculate the current spatial distribution of projectile delivery to the
Earth and Moon using numerical orbital dynamics simulations of candidate
impactors drawn from a debiased Near-Earth-Object (NEO) model. Surprisingly, we
find that the average lunar impact velocity is 20 km/s, which has ramifications
for converting observed crater densities to impactor size distributions. We
determine that current crater production on the leading hemisphere of the Moon
is 1.29 +/- 0.01 that of the trailing when considering the ratio of craters
within 30 degrees of the apex to those within 30 degrees of the antapex and
that there is virtually no nearside-farside asymmetry. As expected, the degree
of leading-trailing asymmetry increases when the Moon's orbital distance is
decreased. We examine the latitude distribution of impactor sites and find that
for both the Earth and Moon there is a small deficiency of time-averaged impact
rates at the poles. The ratio between deliveries within 30 degrees of the pole
to that of a 30 degree band centered on the equator is nearly unity for Earth
(<1%)(0.992 +/- 0.001) but detectably non-uniform for the Moon (~10%)(0.912 +/-
0.004). The terrestrial arrival results are examined to determine the degree of
AM/PM asymmetry to compare with meteorite fall times (of which there seems to
be a PM excess). Our results show that the impact flux of objects derived from
the NEOs in the AM hours is ~2 times that of the PM hemisphere, further
supporting the assertion that meteorite-dropping objects are recent ejections
from the main asteroid belt rather than young fragments of NEOs.
