General information
GRB 260506A was detected as a likely short gamma-ray burst by Fermi/GBM at 2026-05-06 06:28:48 UT, with an on-ground localization at RA=145.7 deg, Dec=76.1 deg (J2000) and 7.2 deg statistical uncertainty. The event was also detected by the Glowbug gamma-ray telescope and followed up rapidly by MASTER-Net with optical non-detections.
Wavelength coverage
- Gamma-rays: Detection by Fermi/GBM; independent detection by Glowbug with ~19 sigma significance and a reported 0.32 s duration (single peak).
- Optical: MASTER-OAGH/MASTER-Net observations beginning ~230 s after trigger; multiple pointings with clear-band upper limits reaching 19.3 mag.
No observations were mentioned in X-rays, ultraviolet, infrared/near-infrared, or radio.
Lightcurve and spectrum
- Glowbug reports a single-peaked lightcurve with duration 0.32 s and total significance ~19 sigma.
Redshift
What’s special vs typical