TITLE: GCN CIRCULAR NUMBER: 27647 SUBJECT: IPN triangulation of GRB 200423A (short) DATE: 20/04/25 22:02:12 GMT FROM: Anna Ridnaia at Ioffe Institute A. Ridnaia, D. Svinkin, and K. Hurley, on behalf of the IPN, A. Goldstein, M. S. Briggs, and C. Wilson-Hodge on behalf of the Fermi GBM team, and A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo, and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, report: The short-duration GRB 200423A (Fermi-GBM detection: The Fermi GBM team, GCN Circ. 27632) was detected by Fermi (GBM trigger 609342856) and INTEGRAL (SPI-ACS) at about 50051 s UT (13:54:11). We have triangulated it to a GBM-INTEGRAL annulus centered at RA(2000)=234.403 deg (15h 37m 37s) Dec(2000)=+51.175 deg (+51d 10' 31"), whose radius is 40.464 +/- 3.464 deg (3 sigma). The IPN localization is consistent with, but reduces the area of, the Fermi-GBM one. This localization may be improved. A triangulation map is posted at http://www.ioffe.ru/LEA/GRBs/GRB200423_T50051/IPN/