Fermi GBM detects a likely Terrestrial Gamma-ray Flash (TGF) event.
AI Summary
The event, classified as having a 100% probability of being a TGF, was detected on 2026-07-18 at 14:18:33 UTC with no significant follow-up observations reported.
Measurements
| Event ID | 806077118 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | low |
| Trigger time (UTC) | Sat, 18 Jul 2026 14:18:33 GMT |
| Right ascension (J2000) | 138.15° |
| Declination (J2000) | -60.0833° |
| Position error radius | 19° |
| GCN notices | 2 |
| GCN circulars | 0 |
Notices (1)
Fermi GBM — GRB · Sat, 18 Jul 2026 14:18:33 GMT
AI summary generated Mon, 20 Jul 2026 06:36:21 GMT.