TITLE: GCN CIRCULAR NUMBER: 40888 SUBJECT: IPN triangulation of GRB 250627A (short) DATE: 25/07/02 16:13:38 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, Y. Zhang, C. Wang, S. Xiong, J. Wei, and B. Cordier 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 250627A (SVOM-GRM detection: Wang et al., GCN 40871; Insight-HXMT detection: Wang et al., GCN 40872) was detected by SVOM (GRM), Insight-HXMT, Konus-Wind, and Mars-Odyssey (HEND) at about 60378 s UT (16:46:18). We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 90.764 (06h 03m 03s) +10.097 (+10d 05' 48") Corners: 90.676 (06h 02m 42s) +10.618 (+10d 37' 04") 90.803 (06h 03m 13s) +9.585 ( +9d 35' 07") 90.855 (06h 03m 25s) +9.577 ( +9d 34' 37") 90.727 (06h 02m 55s) +10.609 (+10d 36' 32") --------------------------------------------- The error box area is 185 sq. arcmin, and its maximum dimension is 1.1 deg (the minimum one is 2.4 arcmin). The Sun distance was 14 deg. This localization may be improved. A triangulation map and HEALPix FITS file are posted at http://www.ioffe.ru/LEA/GRBs/GRB250627_T60377/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/40888. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...