{
  "bibcode": "2025GCN.41873....1Z",
  "circularId": 41873,
  "createdOn": 1758233586707,
  "eventId": "GRB 250916A",
  "submitter": "Weikang Zheng at UC Berkeley <weikang@berkeley.edu>",
  "body": "WeiKang Zheng (UCB) and Alexei V. Filippenko (UCB) report on\n\nbehalf 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 250916A (Fermi GBM\n\nteam, GCN 41839; Arya et al., GCN 41843; Cheung et al., GCN 41855;\n\nWaratkar et al., GCN 41871) starting at ~0.783d and again at ~1.738d\n\nafter the burst. A set of clear (roughly R) filter images were\n\nobtained. We clearly detected the optical afterglow (Belkin et al.,\n\nGCN 41847; Mohan et al., GCN 41858; Moskvitin et al., GCN 41859;\n\nBurkhonov et al., GCN 41860; de Ugarte Postigo et al., GCN 41863;\n\nMoskvitin et al., GCN 41870) in our coadd images. We estimate the\n\nafterglow to be 19.35 +/- 0.1 and 20.10 +/- 0.1 mag (Vega) at a mid\n\ntime of ~0.824d and ~1.807d respectively.\n",
  "submittedHow": "email",
  "subject": "GRB 250916A: KAIT optical observations"
}