TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2690 SUBJECT: Possible GRB 040903 detected with INTEGRAL DATE: 04/09/03 19:23:25 GMT FROM: Diego Gotz at IASF-CNR D. Gotz, S. Mereghetti (IASF-Milano) and N. Mowlavi (ISDC) on behalf of the IBAS Localization Team report: The off-line analysis of IBAS Alert # 1972 reveals a possible GRB of the duration of 10 s detected in the 15-60 keV energy range. Its coordinates are (J2000) R.A. = 18h 03m 22s Dec. = -25deg 15' 23'' with an uncertainty of 2.5 arcmin (90% c.l.). Considering the location close to the Galactic Center and the soft spectrum, we cannot exclude that this burst is due to a new galactic source. Further analysis is underway.