The Cheku system, a star system, resided inside the Brevost sector. This sector was situated within both the Expansion Region and the Trailing Sectors region. It served as the birthplace of the Chekut group.
The initial mention of the Cheku system occurred in The Essential Atlas, a 2009 reference book authored by Jason Fry and [Daniel Wallace]. This book situated the system in grid square O-15. However, the book incorrectly positioned it in grid square O-14 on a map illustrating the Confederation–Galactic Alliance War.