{
  "createdOn": 1774169090257,
  "bibcode": "2026GCN.44077....1L",
  "submittedHow": "web",
  "submitter": "Xinghao Luo at IHEP <2952704891@qq.com>",
  "eventId": "GRB 260320A",
  "format": "text/plain",
  "subject": "GRB 260320A: Insight-HXMT/HE detection",
  "circularId": 44077,
  "body": "Xing-Hao Luo, Chen-Wei Wang, Chao Zheng, Cheng-Kui Li and Shao-Lin Xiong (IHEP) report on behalf of the Insight-HXMT team:\n\nAt 2026-03-20T19:40:04.700 (T0), Insight-HXMT/HE detected the burst GRB 260320A, which is also detected by NuSTAR (G. Waratkar et.al., GCN #44064).\n\t\nThe Insight-HXMT/HE light curve mainly consists of a single pulse with a T90 of 4.4 +1.2/-0.8 s. The 1s peak rate, measured from T0-0.7 s, is 2511 cnts/sec. Insight-HXMT/HE detected a total of 5253 counts from this burst.\n\nThe HXMT/HE light curve can be found here:\nhttps://www.bursthub.cn//admin/static/hxmtgrb260320A.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"
}