General information
Fermi trigger No. 804552016 is reported as GRB260630.94 at RA 12h45m31.92s, Dec -37d28m01.2s, with an errorbox radius stated as R=50. MASTER-Net observed the field from Argentina and Mexico and reported optical upper limits, with no optical transient detection stated.
Wavelength coverage
- Gamma-ray: Fermi trigger No. 804552016 is the initiating alert and is identified as GRB260630.94.
- Optical: MASTER-OAFA began inspection 1868 s after trigger time and reached limits up to 19.9 mag; MASTER-OAGH later observed at 17858 s after trigger time with a limit up to 18.5 mag.
No observations are mentioned in radio, millimeter, infrared, ultraviolet, X-ray, neutrino, or gravitational-wave bands.
Lightcurve and spectrum
- MASTER-OAFA observations began at 2026-06-30 23:11:19 UT, 1868 s after trigger time, with individual and coadded unfiltered limits listed between about 18.8 and 19.9 mag.
- The deepest reported optical limit is 19.9 mag from a 180 s coadd at Tmid-T0 = 1958 s.
- MASTER-OAGH began observations at 2026-07-01 03:37:49 UT, 17858 s after trigger time, with an upper limit up to 18.5 mag.
Redshift
What’s special vs typical