TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1036 SUBJECT: IPN Triangulation of GRB010412 DATE: 01/04/13 16:54:08 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley, on behalf of the Ulysses GRB team, and C. Guidorzi, E. Montanari, and F. Frontera, on behalf of the BeppoSAX GRBM team, report: Ulysses and BeppoSAX GRBM observed this burst (GCN 1035). As observed by Ulysses, it had a duration ~80 s, a 25-100 keV fluence of 9.4x10^-6 erg/cm^2, and a peak flux over 0.5 s of ~9 x 10^-7 erg/cm^2 s. These numbers are subject to more than the usual uncertainties because Ulysses is recording a solar proton event which raises its background by a factor of 2 or so. Triangulation gives an annulus centered at RA(2000), Decl(2000)=3.671, -21.012 deg., with radius 75.856 +/- 0.034 deg. (3 sigma). This intersects the WFC error circle to form an error box whose area is approximately 47 sq. arcmin. and whose corners are at RA(2000) DEC(2000) 294.842577=19 h 39 m 22.22 s 13.545103= 13 o 32 ' 42.37 " 294.929439=19 h 39 m 43.07 s 13.716716= 13 o 43 ' 0.18 " 294.906675=19 h 39 m 37.60 s 13.518189= 13 o 31 ' 5.48 " 294.990525=19 h 39 m 57.73 s 13.683762= 13 o 41 ' 1.54 " This error box can be refined by further processing.