TITLE: GCN CIRCULAR NUMBER: 45468 SUBJECT: GRB 260825A: GECAM-B observation DATE: 26/08/30 09:38:29 GMT FROM: jy_luo2002@163.com Jin-Ye Luo, Chen-Wei Wang, Yue Wang, Hao-Xuan Guo, Shao-Lin Xiong (IHEP) report on behalf of GECAM team: GECAM-B was triggered on-ground by GRB 260825A at 2026-08-25T13:07:19.000 UTC (denoted as T0), which is also detected by Fermi/GBM (Fermi GBM team, GCN #45439) and AstroSat/CZTI (Harsha K. H. et al., GCN #45466). According to the GECAM-B light curves in about 70-6000 keV, this burst mainly consists of multiple pulses with a duration (T90) of 45 +7/-13 s. The GECAM-B light curve can be found here: https://www.bursthub.cn/gcn/2026/gecambgrb260825A.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). View this GCN Circular online at https://gcn.nasa.gov/circulars/45468. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...