Fermi detected GRB260211.89, a gamma-ray burst with follow-up optical observations.
AI Summary
Fermi's GBM instrument detected a significant gamma-ray burst (GRB260211.89) on 2026-02-11. Follow-up optical observations by the MASTER-Kislovodsk telescope provided upper limits on the optical magnitude ranging from 16.3 to 17.2.
Measurements
| Event ID | GBM_792537871 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | medium |
| Trigger time (UTC) | Wed, 11 Feb 2026 21:24:26 GMT |
| Right ascension (J2000) | 10.51° |
| Declination (J2000) | 1.41° |
| Position error radius | 27.74° |
| GCN notices | 4 |
| GCN circulars | 1 |
Notices (1)
Fermi GBM — GRB · Wed, 11 Feb 2026 21:24:26 GMT
GCN Circulars (1)
GCN-43706 — GRB260211
· Thu, 12 Feb 2026 03:45:23 GMT
An astronomical alert was issued for Fermi GRB260211.89 (trigger No 792537871), with observations conducted by the MASTER-Kislovodsk robotic telescope in Russia. The team obtained upper limits on magnitudes ranging from 16.3 to 17.2 in clear filter, and the observations are continuing.
AI summary generated Sat, 14 Mar 2026 09:02:54 GMT.