EP 241021a: Swift-XRT observations

Swift-XRT has performed follow-up observations of the Einstein Probe-detected fast X-ray transient EP 241021a, collecting 2.6 ks of Photon Counting (PC) mode data between T0+315.9 ks and T0+327.3 ks. No X-ray sources have been detected consistent with being within 2.0 arcsec of the Einstein Probe position. The 3-sigma upper limit at the transient position is ~0.003 ct s^-1, corresponding to a 0.3-10 keV observed flux of 1.3e-13 erg cm^-2 s^-1 (assuming a typical GRB spectrum). We note that GCN Circ. 37870 initially incorrectly referred to this source as GRB 241021A. The results of the XRT-team automatic analysis of the XRT observations, including a position-specific upper limit calculator, are available at https://www.swift.ac.uk/ToO_GRBs/00021725. This circular is an official product of the Swift-XRT team.