TITLE: GCN CIRCULAR NUMBER: 42934 SUBJECT: The EP-WXT trigger 01709249064: Las Cumbres discovery of the optical counterpart DATE: 25/12/02 02:44:37 GMT FROM: Wenxiong Li at NAOC <liwenxiong1992@gmail.com> Wenxiong Li, Runduo Liang (NAOC), Iair Arcavi (TAU), Ido Keinan (TAU), David Sand (U of Arizona) We observed the position of The EP-WXT trigger 01709249064 with a Las Cumbres 1m telescope at Teide Observatory, Tenerife, 18 mins after the Einstein Probe WXT trigger. We took 2x300s exposures in the broad optical w band. We find a uncataloged source at RA=122.1143 Dec=40.6123 within the EP/WXT error circle and measure the following preliminary photometry calibrated to the r band: MJD 61011.089 Mag 15.6 We find a faint red likely extended source at this position in Legacy Survey data (https://www.legacysurvey.org/viewer). Additional followup is encouraged. View this GCN Circular online at https://gcn.nasa.gov/circulars/42934. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...