STARITHM
Fermi GBM detects long gamma-ray burst GRB 261030A
AI Summary
On October 30, 2026, Fermi GBM detected a long gamma-ray burst (GRB 261030A) at RA(2000.0) = 341.2 deg, Dec(2000.0) = 7.5 deg with a statistical uncertainty of 1.7 deg and a systematic error of 2 deg.
Measurements
| Event ID | 815070447 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | high |
| Trigger time (UTC) | Fri, 30 Oct 2026 16:27:22 GMT |
| Right ascension (J2000) | 340.59° |
| Declination (J2000) | 7.07° |
| Position error radius | 1° |
| GCN notices | 10 |
| GCN circulars | 2 |
Notices (1)
Fermi GBM — GRB · Fri, 30 Oct 2026 16:27:22 GMT
GCN Circulars (2)
GCN-46115 — GRB 261030A
· Fri, 30 Oct 2026 16:51:50 GMT
A gamma-ray burst, GRB 261030A, was detected by the Fermi Gamma-ray Burst Monitor on October 30, 2026, at 16:27:22 GMT. The event was localized using the BALROG algorithm, with a best-fit position at RA(2000.0) = 341.2 deg and Decl.(2000.0) = 7.5 deg, and an estimated error radius of 1.7 deg statistical and 2 deg systematic.
GCN-46114 — GRB 261030A
· Fri, 30 Oct 2026 16:37:56 GMT
The Fermi Gamma-ray Burst Monitor (GBM) detected a likely long gamma-ray burst (GRB 261030A) on October 30, 2026, at 16:27:22 UT. The event was located at RA = 340.6, Dec = 7.1 (J2000) with a statistical uncertainty of 1.0 degrees, and the angle from the Fermi LAT boresight was 74.0 degrees.
AI summary generated Fri, 30 Oct 2026 18:00:45 GMT.