TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2596 SUBJECT: IBAS GRB Alerts n.1785 to 1791 DATE: 04/05/13 21:33:21 GMT FROM: Sandro Mereghetti at IASF/CNR S.Mereghetti on behalf of the IBAS Localization Team reports: IBAS Alerts n.1785 - 1791 are not caused by a GRB or an SGR. They were due to a known source, but the attitude information was incorrect and they were not filtered by the IBAS alert distribution software