{
  "submitter": "guohx@ihep.ac.cn",
  "eventId": "GRB 261019A",
  "body": "Hao-Xuan Guo, Zheng-Hang Yu, Chen-Wei Wang, Cheng-Kui Li, Shao-Lin Xiong, and Chao Zheng (IHEP) report on behalf of the Insight-HXMT team:\n\nAt 2026-10-19T09:14:11.500 (T0), Insight-HXMT/HE detected a long burst, GRB 261019A, which is also detected by Fermi/GBM (Fermi GBM team, GCN #45989).\n\nThe Insight-HXMT/HE light curve mainly consists of a pulse with a T90 of 100 +/-12 s. The 1s peak rate, measured from T0+1.5 s, is 895 cnts/sec. Insight-HXMT/HE detected a total of 24784 counts from this burst.\n\nThe HXMT/HE light curve can be found here:\nhttps://www.bursthub.cn/gcn/2026/hxmtgrb261019A.png\n\nAll measurements above are made with the CsI detectors of Insight-HXMT/HE operating in the regular mode with the energy range of about 60-900 keV (deposited energy). Only gamma-rays with energy greater than about 200 keV can penetrate the spacecraft and leave signals in the CsI detectors installed inside of the telescope.\n\nInsight-HXMT is the first Chinese space X-ray telescope, which was funded jointly by the China National Space Administration (CNSA) and the Chinese Academy of Sciences (CAS). More information about it could be found at: http://hxmten.ihep.ac.cn/\n",
  "eventType": [
    "GRB",
    "Gamma-ray Transient"
  ],
  "format": "text/plain",
  "circularId": 46013,
  "subject": "GRB 261019A: Insight-HXMT/HE detection",
  "submittedHow": "web",
  "createdOn": 1792748500626
}