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GCN Circular 31377

GRB 220103A: Fermi GBM Final Real-time Localization
2022-01-03T21:13:33Z (2 years ago)
Fermi GBM Team at MSFC/Fermi-GBM <>
The Fermi GBM team reports the detection of a likely LONG GRB

At 21:03:12 UT on 3 Jan 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220103A (trigger 662936597.88881 / 220103877).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 36.9, Dec = -15.7 (J2000 degrees, equivalent to J2000 02h 27m, -15d 41'), with a statistical uncertainty of 8.4 degrees.

The angle from the Fermi LAT boresight is 63.0 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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