GCN Circular 38326

C. Zheng (IHEP), Shao-Lin Xiong (IHEP), Peng Zhang (IHEP), Yan-Qiu Zhang (IHEP),  Chen-Wei Wang (IHEP) report on behalf of the GECAM team:

GECAM-B detected a short burst at 2024-11-26T05:12:17.510 UTC (denoted as T0). According to the GECAM-B light curves in about 20-100 keV, this burst mainly consists of a single pulse with a duration of about 0.08 s.

The GECAM light curve could be found here:
https://www.bursthub.cn//admin/static/gbsgr_241126_051217.png

Using the automatic on-ground localization pipeline with the daily data, 
GECAM-B localized this burst to the following position (J2000): 
Ra: 278.64 deg 
Dec: -11.35 deg
Err: 2.95 deg (1-sigma, statistical only)
The location is consistent with the SGR 1830 within the margin of error.

The GECAM preliminary location could be found here:  
https://www.bursthub.cn//admin/static/gbsgr_241126_051217_loc.png

Please note that all GECAM results here are preliminary. The final analysis
will be published in journal papers or GECAM online catalog.

Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor
(GECAM) mission consists of two small satellites (GECAM-A and GECAM-B) in
Low Earth Orbit (600 km, 29 deg), launched on Dec 10, 2020 (Beijing Time),
which was funded by the Chinese Academy of Sciences (CAS).