STARITHM
Fermi GBM detects a likely Terrestrial Gamma-ray Flash (TGF) at high significance.
AI Summary
The Fermi Gamma-ray Burst Monitor detected an event classified as a probable TGF with a 100% likelihood, indicating a terrestrial origin. Key parameters include burst intensity and significant gamma-ray emission. No additional follow-up observations have been reported.
Measurements
| Event ID | 811752007 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | medium |
| Trigger time (UTC) | Tue, 22 Sep 2026 06:40:02 GMT |
| Right ascension (J2000) | 263° |
| Declination (J2000) | 35.7833° |
| Position error radius | 30.9833° |
| GCN notices | 3 |
| GCN circulars | 0 |
Notices (1)
Fermi GBM — GRB · Tue, 22 Sep 2026 06:40:02 GMT
AI summary generated Tue, 22 Sep 2026 12:03:14 GMT.