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GCN Circular 35769

GRB 240222A: Fermi GBM Final Real-time Localization
2024-02-22T09:02:21Z (2 months ago)
Fermi GBM Team at MSFC/Fermi-GBM <>
The Fermi GBM team reports the detection of a likely LONG GRB

At 08:51:31 UT on 22 Feb 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240222A (trigger 730284696.466782 / 240222369).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 143.3, Dec = -60.4 (J2000 degrees, equivalent to J2000 09h 33m, -60d 23'), with a statistical uncertainty of 9.1 degrees.

The angle from the Fermi LAT boresight is 109.0 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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