Fermi detected GRB260211.89, a gamma-ray burst with follow-up optical observations.
Event ID: GBM_792537871
Significance: medium
Generated: Sat, 14 Mar 2026 09:02:54 GMT
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.
Notices (2)
Fermi — GRB · Wed, 11 Feb 2026 15:54:26 GMT
Unknown — OTHER · Wed, 11 Feb 2026 15:54:26 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.