{
  "submitter": "Xinghao Luo at IHEP <2952704891@qq.com>",
  "circularId": 46065,
  "version": 2,
  "subject": "GRB 261024D: Insight-HXMT/HE detection",
  "editedOn": 1793211391009,
  "submittedHow": "web",
  "format": "text/plain",
  "eventId": "GRB 261024D",
  "eventType": [
    "GRB",
    "Gamma-ray Transient"
  ],
  "body": "Xing-Hao Luo, Chen-Wei Wang, Chao Zheng, and Shao-Lin Xiong (IHEP) report on behalf of the Insight-HXMT team:\n\nAt 2026-10-24T21:33:06.850 (T0), Insight-HXMT/HE detected the GRB 261024D, which is also detected by AstroSat CZTI (A. Goyal et.al., GCN#46040), NuSTAR (G. Waratkar et.al, GCN#46051), Glowbug gamma-ray telescope (C. C. Cheung et.al., GCN#46053), and GECAM-B (Xing-Hao Luo et.al., GCN#46061).\n\t\nThe Insight-HXMT/HE light curve mainly consists of multiple pulses with a T90 of 9.0 +1.5/-0.5 s. The 1s peak rate, measured from T0+0.25 s, is 2957 cnts/sec. Insight-HXMT/HE detected a total of 11613 counts from this burst.\n\nThe HXMT/HE light curve can be found here:\nhttps://www.bursthub.cn/gcn/2026/hxmtgrb261024D.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",
  "createdOn": 1793162494148,
  "editedBy": "Vidushi Sharma at NASA GSFC/UMBC <vidushi.sharma@nasa.gov> on behalf of Xinghao Luo at IHEP <2952704891@qq.com>"
}