TITLE: GCN GRB OBSERVATION REPORT NUMBER: 687 SUBJECT: GRB000604 [IPN Position] DATE: 00/06/05 17:28:09 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley, on behalf of the Ulysses GRB team, T. Cline, on behalf of the NEAR GRB team, and E. Mazets and S. Golenetskii, on behalf of the Konus Wind GRB team, report: The gamma-ray burst gods were very angry on Sunday June 4. This burst was observed by Ulysses, NEAR, and Konus at 2114 s UT. As observed by Ulysses, it had a duration ~15 s, a 25-100 keV fluence of ~1.3x10^-5 erg/cm^2, and a 0.25 s peak flux of ~3x10^-6 erg/cm^2 s. We have localized it to a preliminary error box whose area is ~22 sq. arcmin. (3 sigma) and whose coordinates are: RA(2000) DEC(2000) 15 h 35 m 47.21 s 10 o 41 ' 17.56 " (CENTER) 15 h 35 m 42.92 s 10 o 41 ' 2.17 " (CORNER) 15 h 36 m 4.71 s 10 o 32 ' 10.77 " (CORNER) 15 h 35 m 29.72 s 10 o 50 ' 24.70 " (CORNER) 15 h 35 m 51.51 s 10 o 41 ' 32.95 " (CORNER) This error box can be refined considerably.