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GCN Circular 34656

Subject
GRB 230911D: Fermi GBM Final Localization
Date
2023-09-11T09:35:37Z (7 months ago)
From
rachel.hamburg@ijclab.in2p3.fr
Via
Web form
The Fermi GBM team reports the detection of a likely long GRB.
 
At 07:53:09.73 UT on 11 September 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230911D (trigger 716111594 / 230911329).
 
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 154.9, Dec = -20.9 (J2000 degrees, equivalent to J2000 +10h 19m, -20d 55'), with a statistical uncertainty of 1.0 degree.
 
The angle from the Fermi LAT boresight is 67 degrees.
 
The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230911329/quicklook/glg_skymap_all_bn230911329.png

The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230911329/quicklook/glg_healpix_all_bn230911329.fit

The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230911329/quicklook/glg_lc_medres34_bn230911329.gif
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