TITLE: GCN CIRCULAR NUMBER: 43559 SUBJECT: IPN triangulation of GRB 260127B (short) DATE: 26/01/29 18:13:36 GMT FROM: Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru> A. Ridnaia, D. Frederiks, A. Lysenko, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, and A. Goldstein, M. S. Briggs, C. Wilson-Hodge, and E. Burns on behalf of the Fermi GBM team, report: The short-duration GRB 260127B (Fermi-GBM detection: The Fermi GBM team, GCN 43533) was detected by Fermi (GBM trigger 791236957) and Konus-Wind at about 72153 s UT (20:02:33). We have triangulated it to a Konus-GBM annulus centered at RA(2000)=104.669 deg (06h 58m 40s) Dec(2000)=+21.845 deg (+21d 50' 41"), whose radius is 72.490 +/- 0.104 deg (3 sigma). The annulus combined with the Fermi-GBM final position (GCN 43533; glg_healpix_all_bn260127835_v00) gives ~6.8 sq. deg (3 sigma) localization region. The the optical source detected by GOTO (GOTO26aih/AT2026bnn, GCN 43538) is outside the IPN annulus. A triangulation map and HEALPix FITS file are posted at http://www.ioffe.ru/LEA/GRBs/GRB260127_T72154/IPN/ View this GCN Circular online at https://gcn.nasa.gov/circulars/43559. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...