TITLE: GCN CIRCULAR NUMBER: 1841 SUBJECT: IPN triangulation of GRB030131 DATE: 03/01/31 22:07:31 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley and T. Cline, on behalf of the Ulysses GRB team, A. von Kienlin, G. Lichti, and A. Rau, on behalf of the INTEGRAL SPI-ACS GRB team, and S. Mereghetti, J. Borkowski, and D. Gotz, on behalf of the INTEGRAL IBIS GRB team, report: Ulysses observed this burst (GCN 1836, 1838). As observed by Ulysses, it had a duration of approximately 100 s, a 25-100 keV fluence of approximately 1.E-06 erg/cm2, and a peak flux over 0.25 s of approximately 6.E-07 erg/cm2 s. We have triangulated it to a preliminary annulus centered at RA, Decl. (2000)= 176.751,+40.439 degrees, with radius 22.616 +/- 0.032 degrees (3 sigma). This annulus intersects the error circle given in GCN 1838 at: RA DEC 202.037 30.699 202.079 30.757 201.944 30.693 202.046 30.832 reducing its area by a factor of about 5, to 16 sq. arcmin. This localization may be improved.