GCN Circular 35562
Subject
GRB 240118B: Fermi GBM Final Real-time Localization
Date
2024-01-18T12:21:43Z (4 months ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
Via
email
The Fermi GBM team reports the detection of a likely LONG GRB
At 12:11:05 UT on 18 Jan 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240118B (trigger 727272670.288166 / 240118508).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 49.8, Dec = -55.0 (J2000 degrees, equivalent to J2000 03h 19m, -55d 00'), with a statistical uncertainty of 7.1 degrees.
The angle from the Fermi LAT boresight is 44.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240118508/quicklook/glg_skymap_all_bn240118508.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240118508/quicklook/glg_healpix_all_bn240118508.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240118508/quicklook/glg_lc_medres34_bn240118508.gif
