GCN Circular 35939
Subject
GRB 240317A: Fermi GBM Final Real-time Localization
Date
2024-03-17T09:54:24Z (8 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 09:43:55 UT on 17 Mar 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240317A (trigger 732361440.302272 / 240317405).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 223.9, Dec = 19.1 (J2000 degrees, equivalent to J2000 14h 55m, 19d 06'), with a statistical uncertainty of 4.5 degrees.
The angle from the Fermi LAT boresight is 75.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240317405/quicklook/glg_skymap_all_bn240317405.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/bn240317405/quicklook/glg_healpix_all_bn240317405.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240317405/quicklook/glg_lc_medres34_bn240317405.gif