{
  "createdOn": 1791888074546,
  "body": "Jin-Ji Li, Si-Rui Huang, Jian-Hong Cao, Zhong-Nan Dong, Rui-Chen Gao, Jia-Qi Lin, Pu Lin, Jing-Kai Sun, Yun Shi, Hao-Nan Yang, Hao-Ran Zhang, P. H. Thomas Tam, Rong-Feng Shen, and Bin Ma (Sun Yat-sen University) report on behalf of the SYSU 80cm infrared telescope team:\n\nWe observed the field of GRB 261010A, detected by Swift (Lien et al., GCN 45889) and Fermi/GBM (Fermi GBM Team, GCN 45888), using the Sun Yat-sen University (SYSU) 80cm infrared telescope. Our J-band observations were carried out on 2026 Oct 11 from 13:25:44 to 14:24:51 UT, approximately 18.1–19.1 hours after the Swift/BAT trigger. We combined 171 exposures of 20 s each.\n\nWe do not detect a counterpart at the reported optical afterglow position (O'Neill et al., GCN 45890; Corcoran et al., GCN 45912), down to a 5-sigma limiting magnitude of J ~ 19.6 mag (Vega).\nThe SYSU 80cm infrared telescope is operated and managed by the Department of Astronomy, Sun Yat-sen University.\n",
  "circularId": 45937,
  "submittedHow": "web",
  "eventType": [
    "GRB"
  ],
  "eventId": "GRB 261010A",
  "subject": "GRB 261010A: J-band upper limit by the SYSU 80cm infrared telescope",
  "submitter": "Jinji Li <lijj328@mail2.sysu.edu.cn>",
  "format": "text/plain"
}