General information
GRB 260526A is reported as a likely long gamma-ray burst triggered by Fermi/GBM at 2026-05-26 23:04:00 UT, with an on-ground GBM localization at RA=40.1 deg, Dec=43.9 deg (J2000) and 3.8 deg statistical uncertainty. The burst was also detected on-ground by GECAM-B.
Wavelength coverage
- Gamma-ray: Detected by Fermi/GBM; GECAM-B reports 70–6000 keV light curves and T90 = 42 ± 6 s.
- Optical: MASTER-Tavrida observed starting ~1000 s after trigger and reports only upper limits (clear/C band), up to ~17.1 mag.
No observations are mentioned in X-ray, UV, IR, radio, or TeV/GeV follow-up bands.
Lightcurve and spectrum
GECAM-B reports multiple pulses with duration T90 = 42 ± 6 s (70–6000 keV).
Redshift
What’s special vs typical