YED-4

YED-4 is a Covenant term for a dimension in Slipstream space. During the onset of the Great Schism on November 3, 2552, Zasses 'Jeqkogoee, the navigation officer of the Reverence-class cruiser Incorruptible, noted the presence of anomalies of undetermined origin in YED-4 that may have an effect on the safety of the ship's immediate slipspace transition.

List of appearances

 * Halo: Ghosts of Onyx