The only experience in landing on asteroids comes from Nasa's Near Earth Asteroid Rendezvous (Near) mission, which touched down on the asteroid Eros.

BBC: NEWS | Science/Nature | Asteroid probe 'did touch down'

The Mars Global Surveyor, which mapped the Red Planet from the late 90s, and the Near-Shoemaker probe, which visited an Asteroid Eros in 2003, both carried the Westcott technology.

BBC: Juno Jupiter probe gets British boost

On February 14th, St Valentine's day, one of its craft went into orbit around an asteroid called Eros amid much over-rehearsed, toe-curling humour.

ECONOMIST: An erotic encounter