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Fermi GBM detects likely long GRB 260923A

AI Summary

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Measurements

Event ID811899701
SourceFermi GBM
Alert typeGRB
Significancehigh
Trigger time (UTC)Wed, 23 Sep 2026 23:41:36 GMT
Right ascension (J2000)345.85°
Declination (J2000)-54.09°
Position error radius2.06°
GCN notices8
GCN circulars1

Notices (1)

Fermi GBM — GRB · Wed, 23 Sep 2026 23:41:36 GMT

GCN Circulars (1)

GCN-45710 — GRB 260923A · Wed, 23 Sep 2026 23:52:10 GMT
The Fermi Gamma-ray Burst Monitor (GBM) detected a likely long gamma-ray burst (GRB 260923A) on September 23, 2026, at 23:41:36 UT. The event was located at RA = 345.9, Dec = -54.1 (J2000) with a statistical uncertainty of 2.1 degrees, and the angle from the Fermi LAT boresight was 30.0 degrees.

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AI summary generated Thu, 24 Sep 2026 00:04:57 GMT.