TITLE: GCN CIRCULAR NUMBER: 44411 SUBJECT: IPN triangulation of GRB 260424B (short) DATE: 26/04/27 14:52:38 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, E. Burns on behalf of the IPN, C. Wang (IHEP), S. Xiong (IHEP), S. Zhang (IHEP), J. Wei (NAOC), B. Cordier (CEA) on behalf of the SVOM-GRM 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 short-duration GRB 260424B (SVOM/GRM detection: Wang et al., GCN Circ. 44410) was detected by Konus-Wind, SVOM (GRM), and Mars-Odyssey (HEND) at about 85042 s UT (23:37:22). We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 348.155 (23h 12m 37s) +41.208 (+41d 12' 30") Corners: 348.267 (23h 13m 04s) +41.301 (+41d 18' 04") 348.022 (23h 12m 05s) +41.176 (+41d 10' 32") 348.027 (23h 12m 06s) +41.107 (+41d 06' 24") 348.272 (23h 13m 05s) +41.232 (+41d 13' 56") --------------------------------------------- The error box area is 47 sq. arcmin, and its maximum dimension is 16 arcmin (the minimum one is 3.5 arcmin). The Sun distance was 48 deg. A triangulation map and HEALPix FITS file are posted at http://www.ioffe.ru/LEA/GRBs/GRB260424_T85042/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/44411. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...