TITLE: GCN GRB OBSERVATION REPORT NUMBER: 690 SUBJECT: GRB 000604 optical observations DATE: 00/06/07 14:09:10 GMT FROM: Elia Leibowitz at Wise Obs, Tel Aviv U E.M. Leibowitz, E. Ofek, J. Dunn and P. Ibbetson report: On 2000 June 06.7577 we obtained a 600 sec unfiltered exposure of the GRB000604 area, with the direct imaging mode of the FOSC camera, attached to the 1-m telecope of the Wise Observatory. A star image, which has no counterpart either on the Red or on the Blue DSS_II plates, is apparent at (J2000) R.A.=15:35:54.67 Dec=+10:41:21.5, as measured relative to 126 USNO-A2.0 stars. The stellar image lies outside the preliminary 3 Sigma Gamma ray error box (Hurley et al GCN 687), some 110 arcsec East of the nominal position of the burst. On our unfiltered image, the stellar looking object is 0.2 mag fainter than star A, seen on the DSS plate at R.A.=15:35:53.59 Dec=+10:41:21.5, and 0.35 mag. fainter than star B at R.A.=15:35:54.96 Dec=10:40:32.4. Image is posted at http://wise-obs.tau.ac.il/~eran/GRB000604/. This message may be cited