TITLE: GCN CIRCULAR NUMBER: 38979 SUBJECT: GRB 250119B: Fermi GBM Final Real-time Localization DATE: 25/01/19 08:37:41 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 LONG GRB
At 08:27:01 UT on 19 Jan 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250119B (trigger 758968026.673982 / 250119352).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 306.7, Dec = 21.2 (J2000 degrees, equivalent to J2000 20h 26m, 21d 11'), with a statistical uncertainty of 1.0 degrees.
The angle from the Fermi LAT boresight is 106.0 degrees.
The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250119352/q...
The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250119352/q...
The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250119352/q...
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