Fermi GBM detects likely long GRB 260519D with uncertain localization
AI Summary
The Fermi Gamma-ray Burst Monitor detected a likely long GRB on May 19, 2026, at 19:37:23.371 UT, designated as GRB 260519D. The initial localization was unreliable, but later corrected to RA = 87.37, Dec = -6.37 (J2000) with a statistical uncertainty of 14 degrees.
Measurements
| Event ID | 800912248 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | medium |
| Trigger time (UTC) | Tue, 19 May 2026 19:37:23 GMT |
| Right ascension (J2000) | 0° |
| Declination (J2000) | 0° |
| Position error radius | 0° |
| GCN notices | 2 |
| GCN circulars | 1 |
Notices (1)
Fermi GBM — GRB · Tue, 19 May 2026 19:37:23 GMT
GCN Circulars (1)
GCN-44673 — GRB 260519D
· Wed, 20 May 2026 03:51:26 GMT
The Fermi Gamma-ray Burst Monitor (GBM) detected a likely long gamma-ray burst (GRB) on May 19, 2026, at 19:37:23.371 UT, designated as GRB 260519D. The event was initially misclassified but confirmed as a GRB with a calculated location of RA = 87.37, Dec = -6.37 (J2000) and a statistical uncertainty of 14 degrees.
AI summary generated Fri, 14 Aug 2026 16:44:15 GMT.