STARITHM
Likely short GRB 261025B detected by Fermi GBM with high significance
AI Summary
A likely short gamma-ray burst (GRB 261025B) was detected on 2026-10-25 at 17:38:31 UT. It was localized to RA = 258.2, Dec = 24.8 (J2000) with a statistical uncertainty of 4.6 degrees. Follow-up observations include a skymap and light curve available online.
Measurements
| Event ID | 814642716 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | high |
| Trigger time (UTC) | Sun, 25 Oct 2026 17:38:31 GMT |
| Right ascension (J2000) | 258.19° |
| Declination (J2000) | 24.79° |
| Position error radius | 4.64° |
| GCN notices | 4 |
| GCN circulars | 1 |
Notices (1)
Fermi GBM — GRB · Sun, 25 Oct 2026 17:38:31 GMT
GCN Circulars (1)
GCN-46029 — GRB 261025B
· Sun, 25 Oct 2026 17:46:25 GMT
The Fermi Gamma-ray Burst Monitor (GBM) detected a likely short gamma-ray burst (GRB 261025B) on October 25, 2026, at 17:38:31 UT. The event was localized to RA = 258.2, Dec = 24.8 (J2000) with a statistical uncertainty of 4.6 degrees, and the angle from the Fermi LAT boresight was 30.0 degrees.
AI summary generated Thu, 29 Oct 2026 19:45:11 GMT.