  The paper is devoted to investigate the capture of asteroids by Venus, Earth
and Mars into the 1:1 mean motion resonance especially into Trojan orbits.
Current theoretical studies predict that Trojan asteroids are a frequent
by-product of the planet formation. This is not only the case for the outer
giant planets, but also for the terrestrial planets in the inner Solar System.
By using numerical integrations, we investigated the capture efficiency and the
stability of the captured objects. We found out that the capture efficiency is
larger for the planets in the inner Solar System compared to the outer ones,
but most of the captured Trojan asteroids are not long term stable. This
temporary captures caused by chaotic behaviour of the objects were investigated
without any dissipative forces. They show an interesting dynamical behaviour of
mixing like jumping from one Lagrange point to the other one.
