TITLE: GCN CIRCULAR NUMBER: 44305 SUBJECT: GOTO26djh/AT2026jpw: EP-FXT X-ray counterpart detection DATE: 26/04/16 01:54:19 GMT FROM: Dong Xu at NAOC/CAS <dxu@nao.cas.cn> D. Xu (NAOC), B. P. Gompertz (U. Birmingham), S.Q. Jiang (NAOC) report on behalf of a large group: We performed a ToO observation at the location of GOTO26djh/AT2026jpw, a candidate orphan GRB afterglow (O'Neill et al., GCN 44301) with the Follow-up X-ray Telescope (FXT) onboard the Einstein Probe (EP) mission. The observation started at 18:49:01 on 2026-04-15 UT with a total exposure time of ~3000 s. An uncatalogued X-ray source, with a flux of ~ 1.7 x 10^-13 erg/cm^2/s (0.5-10 keV; observed), is detected at coordinates R.A.(J2000) = 13:22:13.34 Dec.(J2000) = +37:02:26.88 with an uncertainty of 15 arcsec, being consistent with the location of GOTO26djh/AT2026jpw, confirming it's the soft X-ray counterpart of GOTO26djh/AT2026jpw. The X-ray counterpart detection at ~ 3 days since the event happening favors its nature of an afterglow of a high-energy burst. Further EP-FXT observations are scheduled. View this GCN Circular online at https://gcn.nasa.gov/circulars/44305. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...