TITLE: GCN CIRCULAR NUMBER: 4858 SUBJECT: IBAS Alert n. 3218 : not a real GRB DATE: 06/03/10 23:37:56 GMT FROM: Sandro Mereghetti at IASF/CNR S.Mereghetti (IASF Milano) on behalf of the IBAS Localization Team reports: IBAS Alert n. 3218 is not due to a GRB but to a variable known source