Fermi GBM detects likely long GRB 260727B
AI Summary
The Fermi Gamma-ray Burst Monitor (GBM) detected a likely long gamma-ray burst (GRB 260727B) at 03:17:30 UT on 27 July 2026, localized to RA = 191.4, Dec = -24.5 with a statistical uncertainty of 10.6 degrees. Follow-up observations and detailed analysis are underway.
Measurements
| Event ID | 806815055 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | high |
| Trigger time (UTC) | Mon, 27 Jul 2026 03:17:30 GMT |
| Right ascension (J2000) | 191.43° |
| Declination (J2000) | -24.55° |
| Position error radius | 10.64° |
| GCN notices | 4 |
| GCN circulars | 1 |
Notices (1)
Fermi GBM — GRB · Mon, 27 Jul 2026 03:17:30 GMT
GCN Circulars (1)
GCN-45222 — GRB 260727B
· Mon, 27 Jul 2026 03:28:02 GMT
The Fermi Gamma-ray Burst Monitor (GBM) detected a likely long gamma-ray burst (GRB 260727B) at 03:17:30 UT on 27 July 2026. The burst was located at RA = 191.4, Dec = -24.5 (J2000) with a statistical uncertainty of 10.6 degrees.
AI summary generated Thu, 30 Jul 2026 06:51:16 GMT.