TITLE: GCN CIRCULAR NUMBER: 9603 SUBJECT: XRF 090702: a long soft GRB localized with INTEGRAL DATE: 09/07/02 12:34:25 GMT FROM: Diego Gotz at CEA A. Paizis (IASF-Milano), D.Gotz (CEA-Saclay), S.Mereghetti, (IASF- Milano), Wakiko Ishibashi, C. Ferrigno, M. Beck (ISDC, Versoix), and J. Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report: A long gamma ray burst with a soft spectrum, and without any detectable signal above 40 keV has been detected by IBAS in the IBIS/ ISGRI data at 10:40:37 U.T. on July 2nd. Its duration is about 10 s and its refined coordinates (J2000) are: R.A.: 175.888 [degrees] DEC.: +11.501 [degrees] with an uncertainty of 2.5 arcmin (90% c.l.). A preliminary analysis gives a peak flux in the 20-200 keV range of about 0.15 ph/cmsq/s (1 s integration time) and a fluence over the same energy range of about 1.5e-7 erg/cmsq. A plot of the light curve will be posted at http://ibas.iasf-milano.inaf.it/IBAS_Results.html This message can be cited.