Skip to main content
New Swift-BAT/GUANO and IceCube Notice Types Available! See news and announcements

GCN Circular 35253

Subject
The Fermi GBM team reports the detection of a likely SHORT GRB
Date
2023-12-03T22:30:35Z (3 months ago)
From
Bagrat Mailyan at Florida Tech <mbagrat@gmail.com>
Via
Web form
At 19:56:04 UT on 3 Dec 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 231203B (trigger 723326169/ 231203831).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 197.3, Dec = +42.54 (J2000 degrees, equivalent to J2000 13h 09m, 42d 32'), with a statistical uncertainty of 15.9 degrees.
The angle from the Fermi LAT boresight is 17.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231203831/quicklook/glg_skymap_all_bn231203831.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/bn231203831/quicklook/glg_healpix_all_bn231203831.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231203831/quicklook/glg_lc_medres34_bn231203831.gif






Looking for U.S. government information and services? Visit USA.gov