TITLE: GCN CIRCULAR NUMBER: 34373 SUBJECT: GRB 230808B: Fermi GBM Final Real-time Localization DATE: 23/08/08 18:50:46 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 16:46:11 UT on 8 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230808B (trigger 713205976.382378 / 230808699). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 204.7, Dec = -22.2 (J2000 degrees, equivalent to J2000 13h 38m, -22d 11'), with a statistical uncertainty of 2.4 degrees. The angle from the Fermi LAT boresight is 48.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230808699/quicklook/glg_skymap_all_bn230808699.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230808699/quicklook/glg_healpix_all_bn230808699.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230808699/quicklook/glg_lc_medres34_bn230808699.gif