  This work presents a mission concept for in-orbit particle collection for
sampling and exploration missions towards Near-Earth asteroids. Ejecta is
generated via a small kinetic impactor and two possible collection strategies
are investigated: collecting the particle along the anti-solar direction,
exploiting the dynamical features of the L$_2$ Lagrangian point or collecting
them while the spacecraft orbits the asteroid and before they re-impact onto
the asteroid surface. Combining the dynamics of the particles in the Circular
Restricted Three-Body Problem perturbed by Solar Radiation Pressure with models
for the ejecta generation, we identify possible target asteroids as a function
of their physical properties, by evaluating the potential for particle
collection.
