General information
GRB 251113A is a likely long gamma-ray burst triggered by Fermi/GBM at 17:37:30 UT on 2025-11-13, with multiple independent confirmations (AstroSat/CZTI, Glowbug, TERI) and rapid optical follow-up by MASTER-Net reporting only upper limits.
Wavelength coverage
- Gamma-ray / hard X-ray: Fermi/GBM detection and localization; AstroSat/CZTI detection (20–200 keV; Veto 100–500 keV); Glowbug and TERI (ISS) detections.
- Optical: MASTER-SAAO follow-up beginning ~3223 s after trigger with clear-filter limits to ~18.9 mag.
No observations were mentioned in radio, infrared, ultraviolet, soft X-ray (narrow-field), or TeV.
Lightcurve and spectrum
Redshift
What’s special vs typical