TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3544 SUBJECT: IBAS Alert #2512 is NOT a GRB DATE: 05/06/12 02:39:07 GMT FROM: Sandro Mereghetti at IASF/CNR S.Mereghetti, D.Gotz (IASF, Milano), N. Mowlavi (ISDC, Versoix) on behalf of the IBAS Localization Team report IBAS Alert #2512 is not due to a real GRB, but was caused by a known variable source, which was wrongly localized due to the incorrect attitude information available at the time of the burst