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GCN Circular 35293

GRB 231206B: Fermi GBM Final Real-time Localization
2023-12-06T19:07:09Z (7 months ago)
Fermi GBM Team at MSFC/Fermi-GBM <>
The Fermi GBM team reports the detection of a likely SHORT GRB

At 18:56:37 UT on 6 Dec 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 231206B (trigger 723581802.598578 / 231206789).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 41.9, Dec = 3.9 (J2000 degrees, equivalent to J2000 02h 47m, 3d 53'), with a statistical uncertainty of 8.3 degrees.

The angle from the Fermi LAT boresight is 108.0 degrees.

The skymap can be found here:

The HEALPix FITS file, including the estimated localization systematic, can be found here:

The GBM light curve can be found here:

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