TITLE: GCN CIRCULAR NUMBER: 26293 SUBJECT: GRB 191125B: Fermi GBM Final Real-time Localization DATE: 19/11/25 15:23:58 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 15:12:45 UT on 25 Nov 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 191125B (trigger 596387570.686402 / 191125634). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 353.5, Dec = 18.2 (J2000 degrees, equivalent to J2000 23h 33m, 18d 11'), with a statistical uncertainty of 4.1 degrees. The angle from the Fermi LAT boresight is 66.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191125634/quicklook/glg_skymap_all_bn191125634.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191125634/quicklook/glg_healpix_all_bn191125634.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191125634/quicklook/glg_lc_medres34_bn191125634.gif