Vigiliance was an Imperial Dreadnaught class vessel, a component of the Corrupter Task Force. Captain Nemlix was in command of this warship.
Following the Battle of Hoth in 3 ABY, the Vigiliance aided the Imperial II-class Star Destroyer, Corrupter, in chasing the Defiance Task Force. While part of this task force, it was subjected to a raid by a pair of RZ-1 A-wing interceptors belonging to the Rebel Alliance, with one of the fighters piloted by Ace Azzameen.
After the Defiance escaped, the Vigiliance either accompanied the Corrupter on its missions within the Outer Rim Territories or was reassigned to different responsibilities.