TITLE: GCN CIRCULAR NUMBER: 44270 SUBJECT: GRB 260411A: SVOM/GRM observation DATE: 26/04/11 17:35:00 GMT FROM: xueyuan zao <zaoxueyuan@gmail.com> SVOM/GRM team: Xue-Yuan Zao, Chen-Wei Wang, Shi-Jie Zheng, Yue Huang, Shao-Lin Xiong, Shuang-Nan Zhang (IHEP) SVOM/ECLAIRs team: Frédéric Daigne (IAP) Report on behalf of the SVOM team: SVOM/GRM detected the burst GRB 260411A at 2026-04-11T06:36:28.200 UTC (T0), which is also detected by Fermi/GBM (Fermi GBM Team, GCN #44261). With the event-by-event data downloaded through the X-band ground station, we conducted the standard analysis pipeline of GRB 260411A. The GRM light curve shows that this burst consists of multiple pulses with a T90 of 2.0 +3.2/-1.6 s in the 15-5000 keV band. The SVOM/GRM light curve can be found here： https://www.bursthub.cn//admin/static/svgrb260411A.png In addition, the position of this burst, as determined by Fermi/GBM (RA= 153.6, DEC=12.0, GCN#44261), is located at about 69.8 degrees from the SVOM optical axis, which is outside the ECLAIRs field of view. The Space Variable Objects Monitor (SVOM) is a China-France joint mission led by the Chinese National Space Administration (CNSA, China), National Center for Space Studies (CNES, France) and the Chinese Academy of Sciences (CAS, China), which is dedicated to observing gamma-ray bursts and other transient phenomena in the energetic universe. GRM is developed by the Institute of High Energy Physics (IHEP) of CAS. The SVOM/GRM point of contact for this burst is: Xue-Yuan Zao (IHEP) (zaoxy@ihep.ac.cn) View this GCN Circular online at https://gcn.nasa.gov/circulars/44270. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...