On April 9, 2010, an official report was released in the journal Physical Review Letters identifying the isotopes as 294117 and 293117, which were shown to have half-lives on the order of tens or hundreds of milliseconds.
Dňa 9. apríla 2010 vyšla oficiálna správa vo vedeckom časopise Physical Review Letters, v ktorej boli pozorované izotopy identifikované ako 294117 and 293117, s polčasmi rozpadu na úrovni desiatok alebo stoviek milisekúnd.