//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 30878 SUBJECT: GRB 210924A: Fermi GBM Final Real-time Localization DATE: 21/09/24 23:13:09 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely SHORT GRB At 23:02:52 UT on 24 Sep 2021, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 210924A (trigger 654217377.138008 / 210924960). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 107.1, Dec = 45.3 (J2000 degrees, equivalent to J2000 07h 08m, 45d 17'), with a statistical uncertainty of 10.5 degrees. The angle from the Fermi LAT boresight is 22.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210924960/quicklook/glg_skymap_all_bn210924960.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210924960/quicklook/glg_healpix_all_bn210924960.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210924960/quicklook/glg_lc_medres34_bn210924960.gif