The Cavrilhu Pirates, as detailed here, maintained a headquarters within an asteroid located in the Kauron asteroid field. This base featured a unique chamber that generated zero gravity, specifically engineered for the capture and containment of Jedi.
Luke Skywalker followed the trail of the Cavrilhu Pirates, which led him to their asteroid field base. Despite his successful infiltration of the pirate's stronghold, Luke was discovered and almost imprisoned by the resourceful criminals. He managed to break free and was saved by Mara Jade just before the base initiated its self-destruction sequence.