TITLE: GCN CIRCULAR NUMBER: 31039 SUBJECT: GRB 211104A: Fermi GBM Final Real-time Localization DATE: 21/11/04 18:56:35 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov> The Fermi GBM team reports the detection of a likely SHORT GRB At 18:46:10 UT on 4 Nov 2021, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 211104A (trigger 657744375.805276 / 211104782). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 16.9, Dec = 17.5 (J2000 degrees, equivalent to J2000 01h 07m, 17d 30'), with a statistical uncertainty of 22.2 degrees. The angle from the Fermi LAT boresight is 45.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211104782/q... The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211104782/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211104782/q...