GRB 260330A was detected by Fermi/GBM at 2026-03-30 03:40:19 UT and is reported as a likely long GRB. The ISS-based Glowbug gamma-ray telescope independently confirms the detection and reports a duration of ~16 s.
No observations are mentioned in X-ray, UV, optical, IR, or radio.
Glowbug reports an initial faint peak at ~T0+0.2 s, followed by bright multi-peaked structures from ~T0+3 s to +6 s and from ~T0+9 s to +15.5 s.