TITLE: GCN CIRCULAR NUMBER: 35876 SUBJECT: GRB 240305B: Fermi GBM Final Localization DATE: 24/03/05 20:11:14 GMT FROM: Vidushi Sharma at NASA GSFC/UMBC The Fermi GBM team reports the detection of a likely LONG GRB "At 03:52:49.30 UT on 05 March 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240305B (trigger 731303574 / 240305162). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 10.37, Dec = -21.98 (J2000 degrees, equivalent to J2000 00h 41m, -21d 59'), with a statistical uncertainty of 3.05 degrees. The angle from the Fermi LAT boresight is 35 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240305162/quicklook/glg_skymap_all_bn240305162.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240305162/quicklook/glg_healpix_all_bn240305162.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240305162/quicklook/glg_lc_medres34_bn240305162.gif"