{
  "subject": "GRB 260511A: KAIT optical afterglow observations",
  "bibcode": "2026GCN.44536....1Z",
  "circularId": 44536,
  "createdOn": 1778486177469,
  "submitter": "Weikang Zheng at UC Berkeley <weikang@berkeley.edu>",
  "eventId": "GRB 260511A",
  "submittedHow": "email",
  "body": "WeiKang Zheng (UCB), Xuhui Han (NAOC), Pinpin Zhang (NAOC) and\n\nAlexei V. Filippenko (UCB) report on behalf of the KAIT GRB team:\n\n\nThe 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at\n\nLick Observatory, observed the field of GRB 260511A (Fermi GBM Team,\n\nGCN Circ. 44529; Godet et al., GCN Circ. 44532) starting at 06:15:44,\n\n132 seconds after SVOM trigger. Observations were performed in\n\n3 x 3 tiling mode, and a set of clear (roughly R) filter images\n\nwere obtained. The first image covered the optical afterglow\n\n(Jiang et al., GCN 44533; Akl et al. GCN 44534 Saccardi et al.,\n\nGCN 44535) was at 06:16:57, 205 seconds after the burst, in which\n\nwe measure the afterglow brightness to be 16.7 +/- 0.1 mag (Vega)\n\ncalibrated to APASS catalog. Observations are on going.\n"
}