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GCN Circular 34680

GRB 230913A: Fermi GBM Final Real-time Localization
2023-09-13T08:06:34Z (9 days ago)
Fermi GBM Team at MSFC/Fermi-GBM <>
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The Fermi GBM team reports the detection of a likely LONG GRB

At 07:56:12 UT on 13 Sep 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230913A (trigger 716284577.16364 / 230913331).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 287.6, Dec = 78.9 (J2000 degrees, equivalent to J2000 19h 10m, 78d 54'), with a statistical uncertainty of 6.5 degrees.

The angle from the Fermi LAT boresight is 41.0 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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