Fermi GBM detects a likely Terrestrial Gamma-ray Flash (TGF) event.
AI Summary
The event, triggered on 2026-08-16 at 05:33:03.15 UTC, has a classification indicating it is most likely a TGF with 100% probability. Key measurements include high burst intensity and significance, but the position is not precisely localized. No additional follow-up observations have been reported.
Measurements
| Event ID | 808551188 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | low |
| Trigger time (UTC) | Sun, 16 Aug 2026 05:33:03 GMT |
| Right ascension (J2000) | 70.05° |
| Declination (J2000) | 10.0333° |
| Position error radius | 27.9667° |
| GCN notices | 2 |
| GCN circulars | 0 |
Notices (1)
Fermi GBM — GRB · Sun, 16 Aug 2026 05:33:03 GMT
AI summary generated Sun, 16 Aug 2026 23:52:39 GMT.