STARITHM
Fermi GBM detects a likely Terrestrial Gamma-ray Flash (TGF) event with high confidence.
AI Summary
The Fermi Gamma-ray Burst Monitor detected an event classified with 100% probability as a Terrestrial Gamma-ray Flash (TGF). Key parameters include a burst intensity of 404 and a significance of 2.7. No additional follow-up observations have been reported.
Measurements
| Event ID | 812249952 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | low |
| Trigger time (UTC) | Mon, 28 Sep 2026 00:59:07 GMT |
| Right ascension (J2000) | 305.2° |
| Declination (J2000) | -35.75° |
| Position error radius | 33.15° |
| GCN notices | 2 |
| GCN circulars | 0 |
Notices (1)
Fermi GBM — GRB · Mon, 28 Sep 2026 00:59:07 GMT
AI summary generated Mon, 28 Sep 2026 19:17:49 GMT.