{
  "subject": "EP260416a: KAIT optical upper limit",
  "circularId": 44321,
  "createdOn": 1776406243705,
  "submitter": "Weikang Zheng at UC Berkeley <weikang@berkeley.edu>",
  "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 EP260416a (Hu et al.,\n\nGCN 44307) starting at 05:36, Apr 16 UT, about 7.2 minutes after\n\nthe burst. A set of 20s, 40s and 60s clear (roughly R) filter\n\nimages were obtained. In our coadd image, we did not detect the\n\nOT (Ducoin et al., GCN 44310; Li et al., GCN 44315; Hua et al.,\n\nGCN 44318; Lee et al., GCN 44319) down to a limiting mag of 21.0\n\nmag (Vega) at a mid-time of 1.3 hours after the burst. Our result\n\nis consistent with the OT reported at a fatiner magnitude by COLIBRÍ\n\nat a similar time (Ducoin et al., GCN 44310).\n",
  "eventId": "EP260416a"
}