{
  "eventId": "GRB 241206B",
  "subject": "GRB 241206B:  GWAC-F50A optical upper limit",
  "submittedHow": "web",
  "body": "SVOM/GWAC-F50A team：L.P.Xin(NAOC), Y.G.Yang(HNU), C.WU(NAOC), Y.L.Qiu(NAOC), J.Wang(NAOC), H.L.Li(NAOC), E.W.Liang(GXU), X.H.Han (NAOC), X.M.Lu(NAOC), R.S.Zhang(NAOC), Y.Xu(NAOC), L. Huang(NAOC), H.B.Cai(NAOC), Y.J.Xiao(NAOC), P.P.Zhang(NAOC), L.Lan(NAOC), W.J.Xie(NAOC), Z.H.Yao(NAOC), X.G.Wang (GXU), J.Y.Wei(NAOC)\n\nSVOM JSWG: Jian-Yan Wei (NAOC), Bertrand Cordier (CEA), Shuang-Nan Zhang (IHEP), Stéphane Basa (LAM), Olivier Godet (IRAP), Arnaud Claret (CEA), Zi-Gao Dai (USTC), Frédéric Daigne (IAP), Jin-Song Deng (NAOC), Andrea Goldwurm (APC), Diego Götz (CEA), Xu-Hui Han (NAOC), Cyril Lachaud (APC), En-Wei Liang (GXU), Yu-Lei Qiu (NAOC), Susanna Vergani (Obs.Paris), Jing Wang (NAOC), Chao Wu (NAOC), Li-Ping Xin (NAOC), Bing Zhang (UNLV) Report on behalf of the SVOM team:\n\nWe began to observe GRB 241206B (Saccardi et al., GCN 38450), with 50cm telescope (GWAC-F50A) at Xinglong station, China, at 2024-12-06T15:38:26.8 (UT), about 19.7 min after the burst. \n\nWith the initial observation with exposure time of 50 sec, no any uncatalogued source was detected in our image down to a limit magnitude of 17.0 mag in R band comparing to several nearby USNO B1.0 stars.\n\nWe acknowledge the excellent support from observation assistant Yangtong Zheng and Winlong Dong.\n",
  "circularId": 38451,
  "bibcode": "2024GCN.38451....1S",
  "format": "text/plain",
  "createdOn": 1733502546102,
  "submitter": "Liping Xin at NAOC, SVOM <xlp@nao.cas.cn>"
}