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GCN Circular 33021

GRB 221205A: Fermi GBM Final Real-time Localization
2022-12-05T00:42:21Z (2 years ago)
Fermi GBM Team at MSFC/Fermi-GBM <>
The Fermi GBM team reports the detection of a likely LONG GRB

At 00:31:56 UT on 5 Dec 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 221205A (trigger 691893121.981046 / 221205022).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 220.1, Dec = 54.5 (J2000 degrees, equivalent to J2000 14h 40m, 54d 30'), with a statistical uncertainty of 7.7 degrees.

The angle from the Fermi LAT boresight is 49.0 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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