{
  "circularId": 46287,
  "createdOn": 1794716544248,
  "eventType": [
    "GRB",
    "X-ray Transient"
  ],
  "submittedHow": "web",
  "submitter": "xueyuan zao <zaoxueyuan@gmail.com>",
  "body": "SVOM/GRM team: Xue-Yuan Zao, Chen-Wei Wang, Shi-Jie Zheng, Yue Huang, Shao-Lin Xiong, Shuang-Nan Zhang (IHEP)\n\nSVOM/ECLAIRs team: Stéphane Schanne (CEA)\n\nReport on behalf of the SVOM team:\n\nSVOM/GRM was triggered in-flight by GRB 261113A at 2026-11-13T14:31:01 UTC (T0), which is also detected by SVOM/ECLAIRs (A. Saccardi et al., GCN #46244). The SVOM burst id is sb26111302.\n\nWith the event-by-event data downloaded through the X-band ground station, the GRM light curve shows that this burst consists of multiple pulses with a T90 duration of 7.2 +/-0.2 s in the 15-5000 keV band.\n\nThe SVOM/GRM light curve can be found here:\nhttps://www.bursthub.cn/gcn/2026/11/svgrb261113A.png\n\nIn addition, the position of this burst, as determined by SVOM/ECLAIRs (R.A.= 346.32 degrees, Dec.=5.14 degrees, ERR= 2.42 arcmins), is located at about 17.2 degrees from the SVOM optical axis.\n\nWith this localization, the time-averaged spectrum from T0-0.1 to T0+8.5 s is best fitted by a power law function with an exponential high-energy cutoff. The power law index is -0.64 +/-0.08 and the cutoff energy, parameterized as Epeak, is 134 +8/-7 keV. The event fluence (10-1000 keV) in this time interval is (4.85 +0.19/-0.17) E-06 erg/cm^2. \n\nThe localization of GRB 261113A in the 'Amati' relation diagram is shown at: \nhttps://www.bursthub.cn/gcn/2026/11/svgrb261113A_amati.png\n\nThe localization of GRB 261113A in the 'Yonetoku' relation diagram is shown at: \nhttps://www.bursthub.cn/gcn/2026/11/svgrb261113A_yonetoku.png\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: Xue-Yuan Zao (IHEP)(zaoxy@ihep.ac.cn)\n",
  "format": "text/plain",
  "subject": "GRB 261113A: SVOM/GRM observation",
  "eventId": "GRB 261113A"
}