TITLE: GCN CIRCULAR NUMBER: 38641 SUBJECT: EP241217a: Liverpool Telescope optical upper limit DATE: 24/12/19 22:54:28 GMT FROM: A. Bochenek at Liverpool John Moores University <a.m.bochenek@2023.ljmu.ac.uk> A. Bochenek and D. A. Perley (LJMU) report: We observed the field of the fast X-ray transient EP241217a (Zhou et al., GCN 38586) using the IO:O optical camera on the 2m robotic Liverpool Telescope. We obtained 6x200s exposures in the SDSS i’ filter starting at 2024-12-19 20:29:08 UT, approximately 2.62 days after the trigger. We do not detect any object at the position of the optical counterpart (Levan et al., GCN 38587, Williams et al., GCN 38596). The 3-sigma limiting magnitude of the stacked images is i > 22.4 mag. The photometry was calibrated using nearby PanSTARRS secondary standards and was not corrected for extinction. View this GCN Circular online at https://gcn.nasa.gov/circulars/38641. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...