{
  "createdOn": 1780147616258,
  "eventId": "GRB 260530B",
  "subject": "GRB 260530B: SVOM/GRM detection of a possible bright short GRB",
  "submittedHow": "web",
  "format": "text/plain",
  "body": "SVOM/GRM team: Chen-Wei Wang, Shi-Jie Zheng, Yue Huang, Shao-Lin Xiong, Shuang-Nan Zhang (IHEP)\n\nSVOM/ECLAIRs team: Marius Brunet (IRAP)\n\nReport on behalf of the SVOM team:\n\nSVOM/GRM was triggered in-flight by a bright short burst GRB 260530B (SVOM trigger reference: sb26053001) at 2026-05-30T06:00:05.600 UTC (T0).\n\nWith the event-by-event data downloaded through the X-band ground station, the GRM light curve shows that this burst consists of a single symmetrical smooth pulse with a T90 of 1.55 +0.20/-0.15 s in the 15-5000 keV band. \n\nThe SVOM/GRM light curve can be found here:\nhttps://www.bursthub.cn//admin/static/svgrb260530B.png\n\nECLAIRs was not collecting data at the time of this burst.\n\nWe note that this signal was detected near the NWC transmitter and may be associated with the artificial electron belt, so it is not yet clear whether it is a genuine astrophysical burst. \n\nThe 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.\n\nThe SVOM point of contact for this burst is: Chen-Wei Wang (IHEP)(cwwang@ihep.ac.cn)\n\n",
  "submitter": "Chenwei Wang at IHEP <cwwang@ihep.ac.cn>",
  "circularId": 44742
}