TITLE: GCN CIRCULAR NUMBER: 16841 SUBJECT: Swift Trigger 613581 is not an astrophysical event DATE: 14/09/24 19:18:13 GMT FROM: David Palmer at LANL D. M. Palmer (LANL) report on behalf of the Swift Team: Swift Trigger 613581 is a consequence of the previous misidentification of Vela X-1 (Palmer et al. GCN #16840). It does not correspond to an astrophysical event.