GCN Circular 36898
Subject
GRB 240718A: Fermi GBM Final Real-time Localization
Date
2024-07-18T06:39:25Z (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 06:29:00 UT on 18 Jul 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240718A (trigger 742976945.434234 / 240718270).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 252.9, Dec = -27.3 (J2000 degrees, equivalent to J2000 16h 51m, -27d 18'), with a statistical uncertainty of 1.3 degrees.
The angle from the Fermi LAT boresight is 50.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240718270/quicklook/glg_skymap_all_bn240718270.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/bn240718270/quicklook/glg_healpix_all_bn240718270.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240718270/quicklook/glg_lc_medres34_bn240718270.gif