TITLE: GCN CIRCULAR NUMBER: 35426 SUBJECT: GRB 231224A: Fermi GBM Final Real-time Localization DATE: 23/12/24 20:59:57 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 20:49:15 UT on 24 Dec 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 231224A (trigger 725143760.994196 / 231224868).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 102.3, Dec = -71.2 (J2000 degrees, equivalent to J2000 06h 49m, -71d 12'), with a statistical uncertainty of 11.9 degrees.
The angle from the Fermi LAT boresight is 24.0 degrees.
The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231224868/q...
The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231224868/q...
The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231224868/q...
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