GCN Circular 37472
Subject
GRB 240912B: Fermi GBM Final Real-time Localization
Date
2024-09-12T12:48:23Z (3 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 12:38:00 UT on 12 Sep 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240912B (trigger 747837485.316546 / 240912526).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 226.1, Dec = 42.6 (J2000 degrees, equivalent to J2000 15h 04m, 42d 36'), with a statistical uncertainty of 2.0 degrees.
The angle from the Fermi LAT boresight is 147.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240912526/quicklook/glg_skymap_all_bn240912526.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/bn240912526/quicklook/glg_healpix_all_bn240912526.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240912526/quicklook/glg_lc_medres34_bn240912526.gif