TITLE: GCN CIRCULAR NUMBER: 32726 SUBJECT: GRB 221013B: Fermi GBM Final Real-time Localization DATE: 22/10/13 02:33:57 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely SHORT GRB At 02:23:28 UT on 13 Oct 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 221013B (trigger 687320613.487128 / 221013100). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 220.8, Dec = -36.3 (J2000 degrees, equivalent to J2000 14h 43m, -36d 17'), with a statistical uncertainty of 14.6 degrees. The angle from the Fermi LAT boresight is 109.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221013100/quicklook/glg_skymap_all_bn221013100.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221013100/quicklook/glg_healpix_all_bn221013100.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221013100/quicklook/glg_lc_medres34_bn221013100.gif