TITLE: GCN CIRCULAR NUMBER: 36171 SUBJECT: EP240414a: GMG observation DATE: 24/04/19 03:57:39 GMT FROM: wangbaiting@ynao.ac.cn B.-T. Wang, R.-Z. Li, J. Mao, H.-C. Feng, J.-M. Bai (YNAO) report: We observed the field of EP240414a (Lian et al., GCN 36091) by the 2.4 meter GMG telescope in Yunnan observatories. The observation began from UT 18:42:44.276 April 18, 2024, about 4.4 days from the trigger. The optical counterpart of EP240414a was marginally detected. The preliminary results are shown as ----------------------------------------------------------------------------- UT exptime filter mag ----------------------------------------------------------------------------- 2024-04-18T18:42:44.276 900s sdssr 20.8 ± 0.3 -----------------------------------------------------------------------------