{
  "bibcode": "2025GCN.42895....1Z",
  "body": "Jin-Peng Zhang, Jia-Cong Liu, Chen-Wei Wang, Chao Zheng, Shao-Lin Xiong (IHEP) report on behalf of GECAM team:\n\nGECAM-B was triggered in-flight by a long burst, GRB 251128A, at 2025-11-28T04:22:22.950 UTC (denoted as T0), which is also detected by Fermi/GBM (Fermi GBM team, GCN #42865).\n\nAccording to the GECAM-B light curves in about 40-6000 keV, this burst mainly consists of multiple pulses with a duration (T90) of 46 +2/-4 s.\n\nThe GECAM-B light curve can be found here:\nhttps://www.bursthub.cn//admin/static/gecambgrb251128A.png\n\nGravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) mission originally consists of two micro-satellites (GECAM-A and GECAM-B) launched in Dec. 2020. As the third member of GECAM constellation, GECAM-C was launched onboard SATech-01 experimental satellite in July 2022. GECAM mission is funded by the Chinese Academy of Sciences (CAS).",
  "format": "text/plain",
  "submitter": "zhangjinpeng@ihep.ac.cn",
  "subject": "GRB 251128A: GECAM-B detection",
  "createdOn": 1764429077126,
  "circularId": 42895,
  "eventId": "GRB 251128A",
  "submittedHow": "web"
}