 Both discoveries were published in Nature journal (ref [2], [3])

In July 2006, Marchis and his team announced the discovery of a moonlet companion around 624 Hektor using the Keck Laser guide star AO system (ref [4]).This is the first multiple system in the L4 swarm and the first moonlet companion in the Trojan discovered.The second triple system orbiting in the main-belt was discovered by the same team and announced in March 2007.