TITLE: GCN CIRCULAR NUMBER: 45476 SUBJECT: IPN triangulation of GRB 260829A DATE: 26/08/31 19:15:43 GMT FROM: Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru> A.S. Kozyrev, D.V. Golovin, M.L. Litvak, I.G. Mitrofanov, and A.B. Sanin on behalf of the HEND/Mars Odyssey team, A. Ridnaia, D. Frederiks, A. Lysenko, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, A. Goldstein, M. S. Briggs, C. Wilson-Hodge, and E. Burns on behalf of the Fermi-GBM team, and W. Boynton, C. Fellows, K. Harshman, H. Enos, R. Starr, and A.S. Gardner on on behalf of the GRS-Odyssey GRB team, report: The long-duration GRB 260829A (Fermi-GBM detection: Fermi GBM team, GCN 45464; Malacaria et al., GCN 45467; BALROG localization: Preis & Greiner, GCN 45465; GECAM-B detection: Zao et al., GCN 45470) was detected by Fermi (GBM trigger 809676494), Konus-Wind, GECAM-B, and Mars-Odyssey (HEND) at about 22089 s UT (06:08:09). We have triangulated it to the 3 sigma localization region whose area is 5.2 sq. deg, and its maximum dimension is 31 deg (the minimum one is 10 arcmin). This localization may be improved. A triangulation map and HEALPix FITS files are posted at http://www.ioffe.ru/LEA/GRBs/GRB260829_T22110/IPN The HEALPix triangulation map is the multi-order HEALPix in units of probability density. The Konus-Wind time history and spectrum will be given in a forthcoming GCN Circular. View this GCN Circular online at https://gcn.nasa.gov/circulars/45476. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...