{
  "bibcode": "2021GCN.30798....1X",
  "body": "S. Xiao, S. L. Xiong, Y. Zhao, X. Y. Zhao, Y. Huang, X. Y. Song, C. Cai,\nS. L. Xie, Y. Q. Zhang, Z. W. Guo, J. C. Liu, C. Zheng, W. C. Xue, C. Y. Li,\nC. W. Wang, Q. B. Yi, B. X. Zhang, P. Zhang, W. X. Peng, R. Qiao, D. Y. Guo,\nX. B. Li, X. Ma, P. Wang, J. Wang, Z. Zhang, S. J. Zheng, W. Chen, J. J. He, \nG. Y. Zhao, Y. Q. Du, H. Wu, J. Liang, Q. Luo, X. L. Zhang,\nL. M. Song, F. J. Lu, S. N. Zhang (IHEP), report on behalf of GECAM team:\n\nDuring the commissioning phase, GECAM-B was triggered in-flight by a long\nburst, GRB 210909B, at 2021-09-09T20:02:33.600 UTC (denoted as T0), \nwhich was also detected by INTEGRAL/SPI-ACS.\n\nAccording to the GECAM-B light curves in about 15-3500 keV, \nthis burst mainly consists of a broad pulse with a duration of about 10 s.\n\nThe GECAM light curve could be found here:\nhttp://twiki.ihep.ac.cn/pub/GECAM/GRBList/utn210909_200233_GECAMb.png\n\nGECAM-B localized this burst to the following position (J2000):\nRa: 358.6 deg\nDec: -74.9 deg\nErr: 1.1 deg (1-sigma, statistical only)\nThe systematic error of location is estimated to be several degrees. \n\nPlease note that all GECAM results here are preliminary. The final analysis\nwill be published in journal papers or GECAM online catalog.\n\nGravitational wave high-energy Electromagnetic Counterpart All-sky Monitor\n(GECAM) mission consists of two small satellites (GECAM-A and GECAM-B) in\nLow Earth Orbit (600 km, 29 deg), launched on Dec 10, 2020 (Beijing Time),\nwhich was funded by the Chinese Academy of Sciences (CAS).",
  "circularId": 30798,
  "createdOn": 1631286141000,
  "email": "xiaoshuo@ihep.ac.cn",
  "subject": "GRB 210909B: GECAM detection",
  "submitter": "Shuo Xiao at IHEP  <xiaoshuo@ihep.ac.cn>",
  "eventId": "GRB 210909B"
}