Fermi GBM detects likely long GRB 260917C
AI Summary
On September 17, 2026, the Fermi GBM detected a likely long gamma-ray burst (GRB 260917C) at RA = 155.6, Dec = -46.8 with a statistical uncertainty of 5.2 degrees. Follow-up observations and localization are available.
Measurements
| Event ID | 811382049 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | high |
| Trigger time (UTC) | Thu, 17 Sep 2026 23:54:04 GMT |
| Right ascension (J2000) | 155.55° |
| Declination (J2000) | -46.83° |
| Position error radius | 5.23° |
| GCN notices | 5 |
| GCN circulars | 1 |
Notices (1)
Fermi GBM — GRB · Thu, 17 Sep 2026 23:54:04 GMT
GCN Circulars (1)
GCN-45618 — GRB 260917C
· Fri, 18 Sep 2026 00:04:34 GMT
The Fermi Gamma-ray Burst Monitor (GBM) detected a likely long gamma-ray burst (GRB 260917C) on September 17, 2026, at 23:54:04 UT. The event was localized to RA = 155.6, Dec = -46.8 (J2000) with a statistical uncertainty of 5.2 degrees.
AI summary generated Fri, 18 Sep 2026 04:41:05 GMT.