{
  "submitter": "renyz16607@163.com",
  "format": "text/plain",
  "subject": "GRB 260310B: Insight-HXMT/HE detection",
  "createdOn": 1773414340543,
  "bibcode": "2026GCN.43992....1R",
  "body": "Yang-Zhao Ren, Chen-Wei Wang, Cheng-Kui Li, Shao-Lin Xiong, and Chao Zheng (IHEP) report on behalf of the Insight-HXMT team:\n\nAt 2026-03-10T21:41:23.850 (T0), Insight-HXMT/HE detected a long burst, GRB 260310B, which is also detected by Fermi/GBM (Fermi GBM team, GCN #43955), and GECAM-B (Ren et al., GCN #43967). \n\nThe Insight-HXMT/HE light curve mainly consists of multi-pulses with T90 of 43.5 +5.5/-7.5 s. The 1s peak rate, measured from T0+0.25 s, is 1147 cnts/sec. Insight-HXMT/HE detected a total of 11204 counts from this burst.  \n\nThe Insight-HXMT /HE light curve can be found here: \nhttps://www.bursthub.cn//admin/static/hxmtgrb260310B.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/",
  "circularId": 43992,
  "submittedHow": "web",
  "eventId": "GRB 260310B"
}