General information
Fermi trigger No 804738310 is reported as GRB260703.10 at RA 21h 00m 43.92s, Dec +48d 28m 01.2s, with R = 19.2. MASTER-OAGH began follow-up 4323 seconds after the trigger and reported optical upper limits.
Wavelength coverage
- Optical: MASTER-OAGH observed in clear/unfiltered band, starting at 2026-07-03 03:37:09 UT, with 60 s exposures and limits from 17.0 to 17.8 mag.
No radio, infrared, X-ray, gamma-ray follow-up details beyond the Fermi trigger, neutrino, or gravitational-wave observations are mentioned.
Lightcurve and spectrum
- MASTER clear-band upper limits: 17.0 and 17.3 mag at Tmid-T0 = 4354 s.
- MASTER clear-band upper limits: 17.0 and 17.4 mag at Tmid-T0 = 4430 s.
- MASTER clear-band upper limit: 17.8 mag at Tmid-T0 = 6859 s.
Redshift
What’s special vs typical