The Ulkantha asteroids existed within the Ulkantha system, which itself was situated in the Tharin sector of the Slice region, a section of the Outer Rim Territories. The Galactic Empire launched a raid on these Ulkantha asteroids sometime between the years 0 ABY and 3 ABY. This action led to the Death Squadron, an Imperial Star Destroyer fleet, discovering a large Sakiyan smuggling ring operating from the Syvris shadowport located in the Syvris system within the Al'Nasrl sector. Following this discovery, the Death Squadron executed a destructive attack against the shadowport.
The Ulkantha asteroids initially appeared in The Essential Guide to Warfare, a reference book released in 2012 and written by Jason Fry along with Paul R. Urquhart. The Online Companion on StarWars.com for The Essential Atlas reference book from 2009 specified that the Ulkantha system, and consequently the asteroids, were positioned in grid square S-8.