STARITHM
Fermi GBM detects a gamma-ray burst likely not of GRB origin
AI Summary
The Fermi GBM detected an event on 2026-09-08 at 10:07:02.53 UTC, classified as probably not a GRB with secondary likelihood as AGN. Follow-up observations by MASTER-SAAO telescope provided upper magnitude limits up to 18.2.
Measurements
| Event ID | 810554827 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | low |
| Trigger time (UTC) | Tue, 08 Sep 2026 10:07:02 GMT |
| Right ascension (J2000) | 282.5° |
| Declination (J2000) | -27.9° |
| Position error radius | 28.3° |
| GCN notices | 2 |
| GCN circulars | 1 |
Notices (1)
Fermi GBM — GRB · Tue, 08 Sep 2026 10:07:02 GMT
GCN Circulars (1)
GCN-45532 — GRB260908
· Tue, 08 Sep 2026 19:30:49 GMT
The MASTER-SAAO robotic telescope in South Africa began observing the Fermi GRB260908.42 event approximately 25,158 seconds after the trigger, with upper magnitude limits up to 18.2. The observations were conducted in the clear (unfiltered) band with exposure times of 60 seconds, starting at twilight.
AI summary generated Fri, 25 Sep 2026 10:11:32 GMT.