TITLE: GCN CIRCULAR NUMBER: 7790 SUBJECT: GRB 080603: A long GRB detected by INTEGRAL DATE: 08/06/03 13:04:48 GMT FROM: Sandro Mereghetti at IASF/CNR A.Paizis, S.Mereghetti (IASF-Milano), D.Gotz (CEA-Saclay), M. Turler, V.Beckmann, M. Beck (ISDC, Versoix), and J. Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report: A GRB lasting about 180 s has been detected by IBAS in IBIS/ISGRI data at 11:18:11 UT of June 3. The coordinates (J2000) are: RA: 279.409 [degrees] DEC: +62.735 [degrees] with an uncertainty of 2 arcmin (90% c.l.). A preliminary analysis gives a peak flux in the 20-200 keV range of about 0.5 ph/cmq/s (1-s integration time) and a fluence over the same energy range of about 10e-6 erg/cmq. A plot of the light curve will be posted at http://ibas.iasf-milano.inaf.it/IBAS_Results.html This message can be cited.