TITLE: GCN CIRCULAR NUMBER: 37549 SUBJECT: GRB 240918A: Fermi GBM Final Real-time Localization DATE: 24/09/18 21:04:21 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 20:55:11 UT on 18 Sep 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240918A (trigger 748385716.160644 / 240918872).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 221.6, Dec = 17.0 (J2000 degrees, equivalent to J2000 14h 46m, 17d 00'), with a statistical uncertainty of 10.4 degrees.
The angle from the Fermi LAT boresight is 86.0 degrees.
The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240918872/q...
The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240918872/q...
The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240918872/q...
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