STARITHM
Fermi GBM detects likely long GRB 261028A with initial misclassification
AI Summary
On Oct 28, 2026, Fermi GBM detected a potential long GRB (GRB 261028A) initially misclassified as Below horizon but later confirmed as a GRB with a statistical localization uncertainty of 11.52 degrees.
Measurements
| Event ID | 814885581 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | high |
| Trigger time (UTC) | Wed, 28 Oct 2026 13:06:16 GMT |
| Right ascension (J2000) | 26.5667° |
| Declination (J2000) | -64.4° |
| Position error radius | 27.6667° |
| GCN notices | 2 |
| GCN circulars | 1 |
Notices (1)
Fermi GBM — GRB · Wed, 28 Oct 2026 13:06:16 GMT
GCN Circulars (1)
GCN-46069 — GRB 261028A
· Wed, 28 Oct 2026 20:29:29 GMT
The Fermi Gamma-ray Burst Monitor (GBM) detected a likely long gamma-ray burst (GRB 261028A) on October 28, 2026, at 13:06:16.22 UT. The event was initially misclassified but confirmed as a GRB with a statistical uncertainty of 11.52 degrees in its location.
AI summary generated Thu, 29 Oct 2026 22:38:19 GMT.