TITLE: GCN CIRCULAR NUMBER: 853 SUBJECT: IPN TRIANGULATION OF GRB001018 DATE: 00/10/19 18:46:05 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley, on behalf of the Ulysses GRB team, T. Cline, on behalf of the Konus-Wind and NEAR GRB teams, and E. Mazets, and S. Golenetskii, on behalf of the KONUS-WIND GRB team, report: Ulysses, NEAR, and KONUS-WIND observed this GRB at 61114 seconds. As observed by Ulysses, it had a duration of approximately 31. seconds, a 25-100 keV fluence of approximately 1.2E-05 erg/cm2, and a peak flux of approximately 5.0E-01 erg/cm2 s over .50 seconds We have triangulated it to a preliminary, 3 sigma error whose approximate area is 15. sq. arcmin. and whose coordinates are: RA(2000) DEC(2000) ERROR BOX CENTER: 13 h 14 m 10.27 s 11 o 48 ' 31.75 " ERROR BOX CORNER 1: 13 h 14 m 13.68 s 11 o 49 ' 31.43 " ERROR BOX CORNER 2: 13 h 13 m 50.40 s 11 o 51 ' 29.08 " ERROR BOX CORNER 3: 13 h 14 m 30.12 s 11 o 45 ' 34.18 " ERROR BOX CORNER 4: 13 h 14 m 6.85 s 11 o 47 ' 32.06 " This error box may be improved