TITLE:   GCN CIRCULAR
NUMBER:  45875
SUBJECT: GRB 261008A: GECAM-B observation
DATE:    26/10/09 14:13:38 GMT
FROM:    zhangjinpeng@ihep.ac.cn

Jin-Peng Zhang, Chen-Wei Wang, Shao-Lin Xiong (IHEP) report on behalf of GECAM team:

GECAM-B was triggered by GRB 261008A during routine ground search, at 2026-10-08T18:19:08.250 UTC (denoted as T0), which is also detected by Fermi/GBM (Fermi GBM team, GCN #45866).

According to the GECAM-B light curves in about 70-6000 keV, this burst mainly consists of one short pulse.

The GECAM-B light curve can be found here:
https://www.bursthub.cn/gcn/2026/gecambgrb261008A.png

Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) mission originally consists of two micro-satellites (GECAM-A and GECAM-B) launched in Dec. 2020. As the third member of GECAM constellation, GECAM-C was launched onboard SATech-01 experimental satellite in July 2022. GECAM mission is funded by the Chinese Academy of Sciences (CAS).