TITLE: GCN GRB OBSERVATION REPORT NUMBER: 905 SUBJECT: IPN triangulation of GRB001219 DATE: 00/12/20 17:04:51 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 54229 seconds. As observed by Ulysses, it had a duration of approximately 8. seconds, and a 25-100 keV peak flux of approximately 9.1E-07 erg/cm2 s over .25 seconds. We have triangulated it to two alternate, preliminary,3 sigma error boxes each with approximate area 101. sq. arcmin. whose coordinates are: ERROR BOX CENTER: 6 h 53 m 44.31 s -57 o 29 ' 57.84 " ERROR BOX CORNER 1: 6 h 53 m 1.38 s -57 o 27 ' 3.83 " ERROR BOX CORNER 2: 6 h 54 m 38.67 s -57 o 24 ' 52.08 " ERROR BOX CORNER 3: 6 h 52 m 49.82 s -57 o 35 ' 3.28 " ERROR BOX CORNER 4: 6 h 54 m 27.36 s -57 o 32 ' 51.48 " ERROR BOX CENTER: 13 h 32 m 23.10 s -41 o 25 ' 43.27 " ERROR BOX CORNER 1: 13 h 32 m 46.49 s -41 o 20 ' 58.84 " ERROR BOX CORNER 2: 13 h 31 m 37.04 s -41 o 23 ' 31.48 " ERROR BOX CORNER 3: 13 h 33 m 9.17 s -41 o 27 ' 55.31 " ERROR BOX CORNER 4: 13 h 31 m 59.67 s -41 o 30 ' 27.91 " There is a chance that the ambiguity can be resolved by further processing within about 8 hours.