GRB 260222A

Summary

General information

Fermi GBM reports the detection and real-time on-ground localization of GRB 260222A, described as a likely long GRB, triggered at 10:09:38 UT on 22 Feb 2026.

Wavelength coverage

No observations are mentioned in X-ray, UV, optical, IR, radio, neutrinos, or gravitational waves.

Lightcurve and spectrum

Redshift

What’s special vs typical

Circulars [all]

GCN 43804: GRB 260222A: Fermi GBM Final Real-time Localization
2026-02-22T10:20:22.858Z | rev 0