GRB 260428A

Summary

General information

GRB 260428A was detected at 2026-04-28 14:20:35 UT by Fermi/GBM and confirmed by multiple high-energy instruments, with later IPN triangulation reported. Prompt-emission analyses include duration estimates of a few to several seconds and cutoff power-law spectral fits.

Wavelength coverage

Lightcurve and spectrum

Redshift

What’s special vs typical

Circulars [all]

GCN 44678: GRB 260428A: TERI Gamma-ray detection
2026-05-21T14:02:09.821Z | rev 0
GCN 44678: GRB 260428A: TERI Gamma-ray detection
2026-05-21T14:02:09.821Z | rev 2
GCN 44458: IPN triangulation of GRB 260428A
2026-05-04T15:04:29.676Z | rev 0
GCN 44424: GRB 260428A: SVOM/GRM observation of a possible short burst with extended emission
2026-04-29T15:26:34.232Z | rev 0
GCN 44423: GRB 260428A: GECAM-B detection of a possible long duration Type I burst
2026-04-29T15:24:26.476Z | rev 0
GCN 44421: GRB 260428A: AstroSat CZTI detection
2026-04-29T10:52:09.106Z | rev 0
GCN 44420: Fermi GRB 260428A: Global MASTER-Net observations report
2026-04-29T09:48:02.797Z | rev 0
GCN 44415: GRB 260428A: Fermi GBM Final Real-time Localization
2026-04-28T14:31:09.939Z | rev 0