TITLE: GCN CIRCULAR NUMBER: 36845 SUBJECT: EP240708a: KAIT optical upper limit DATE: 24/07/10 19:14:53 GMT FROM: Weikang Zheng at UC Berkeley <weikang@berkeley.edu> WeiKang Zheng (UCB), Xuhui Han (NAOC), Pinpin Zhang (NAOC) and Alexei V. Filippenko (UCB) report on behalf of the KAIT GRB team: The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at Lick Observatory, responded to the fast X-ray transient EP240708a from the Einstein Probe (Chen et al. GCNC 36838) starting at 9.13 hours after the trigger. A set of 30x60s images were obtained in the clear (roughly R) filters. Preliminary analysis do not reveal any new optical counterpart candidate within the 10 arcsec radius EP-FXT error box (Hu et al. GCN 36840) neither in single image, nor in the co-add images, consistent with the reports from Lai et al. (GCN 36839) and Wu et al. (GCN 36841), though shallower than Jiang et al. (GCN 36842). The typical limiting magnitude of our single clear image is about 19.5 mag, and about 20.5 mag in the co-add image. View this GCN Circular online at https://gcn.nasa.gov/circulars/36845. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...