TITLE: GCN CIRCULAR NUMBER: 10234 SUBJECT: GRB 091202: a long GRB detected by INTEGRAL DATE: 09/12/03 00:10:48 GMT FROM: Sandro Mereghetti at IASF/CNR S. Mereghetti, A.Paizis (IASF-Milano), D.Gotz (CEA-Saclay), C.Ferrigno, E.Bozzo, M. Beck (ISDC, Versoix), and J. Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report: A GRB with duration of about 50 s has been detected by IBAS in IBIS/ISGRI data at 23:10:12 UT on December 2nd. The refined coordinates (J2000) are: RA: 138.8312 [degrees] DEC: 62.544 [degrees] with an uncertainty of 2.5 arcmin (90% c.l.). A plot of the light curve will be posted at http://ibas.iasf-milano.inaf.it/IBAS_Results.html This message can be cited.