TITLE: GCN CIRCULAR NUMBER: 35591 SUBJECT: GRB 240119A: GECAM detection of a short burst DATE: 24/01/21 07:42:30 GMT FROM: wenlongzhang2018@163.com Wen-Long Zhang, Shao-Lin Xiong, Chen-Wei Wang, Yue Wang, Yan-Qiu Zhang report on behalf of the GECAM team: GECAM-B was triggered in-flight by a short burst, GRB 240119A, at 2024-01-19T17:29:07.700 UTC (T0), which was also detected by Fermi/GBM (GCN #35583) and AstroSat CZTI (GCN #35589). At the same time, GECAM-C was also triggered on-ground by this burst. According to the light curves, this burst shows a total duration of ~0.1 sec (20-1000 keV). According to the in-flight software, GECAM-B localized this burst to the following position (J2000): Ra: 355.51 deg Dec: -81.39 deg Err: 5.76 deg (1-sigma, statistical only) This GECAM-B localization is consistent with that of Fermi/GBM within the error. We note that these results are very preliminary. Refined analysis will be reported later. Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM) mission originally consists of two microsatellites (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/35591. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...