Fermi GBM detects GRB 260210C with a long duration and significant gamma-ray intensity.

AI Summary

GRB 260210C was detected on February 10, 2026, with a preliminary location of RA = 338.7, Dec = 22.6 (J2000 degrees). Follow-up observations by the MASTER-Kislovodsk telescope provided upper limits on magnitudes ranging from 15.8 to 17.7 in the clear band.

Notices (1)

Fermi — GRB · Tue, 10 Feb 2026 14:19:42 GMT

GCN Circulars (2)

GCN-43699 — GRB 260210C · Wed, 11 Feb 2026 16:45:47 GMT
The MASTER-Kislovodsk robotic telescope in Russia began observing Fermi GRB 260210C approximately 71,000 seconds after the trigger time. The team obtained upper limits on magnitudes ranging from 15.8 to 17.7 in clear band for various observations. The observations will continue.

GCN-43690 — GRB 260210C · Tue, 10 Feb 2026 20:00:13 GMT
The Fermi Gamma-ray Burst Monitor (GBM) has detected and localized a new long gamma-ray burst (GRB), designated as GRB 260210C. The event occurred at 19:49:42 UT on February 10, 2026, and its preliminary location is RA = 338.7, Dec = 22.6 (J2000 degrees) with a statistical uncertainty of 7.5 degrees. The angle from the Fermi Large Area Telescope (LAT) boresight is 26.0 degrees.