TITLE: GCN CIRCULAR NUMBER: 9620 SUBJECT: GRB 090704: a long GRB found in INTEGRAL off-line analysis DATE: 09/07/07 16:23:44 GMT FROM: Sandro Mereghetti at IASF/CNR S.Mereghetti, A.Paizis (IASF-Milano), D.Gotz (CEA-Saclay), C. Ferrigno, M. Beck (ISDC, Versoix), and J. Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report: During an off-line analysis of low significance IBAS triggers we found a long GRB detected in IBIS/ISGRI data at 05:47:43 UT on July 4th. The burst had a duration of about 60 s. The burst coordinates (J2000) are: RA: 208.205 [degrees] DEC: 22.790 [degrees] with an uncertainty of 1.7 arcmin (1 sigma c.l.). The peak flux in the 20-200 keV range was about 2 ph/cmq/s (1 s integration time) and the fluence over the same energy range about 6e-6 erg/cmq. The low significance of the IBAS trigger, below the threshold for automatic alert delivery, was due to the very large off-axis angle of about 14 degrees. A plot of the light curve will be posted at http://ibas.iasf-milano.inaf.it/IBAS_Results.html This message can be cited.