TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3678 SUBJECT: GRB 050724: SWIFT XRT refined position DATE: 05/07/25 23:46:41 GMT FROM: Angelo Antonelli at Obs. Astro. di Roma L.A. Antonelli (INAF/OAR), P. Romano, A. Moretti, S. Covino (INAF/OAB), D. Burrows (PSU) on behalf of the SWIFT XRT Team report: We have analyzed the first 20 ksec of the Swift XRT observation of GRB 050724 (GCN 3665, Covino et al.). We derived a refined position of the X-ray afterglow by performing a boresight correction based on the USNO catalog. The new coordinates of the X-ray afterglow are: RA(J2000) = 16h 24m 44.8s, Dec (J2000) = -27d 32' 31.8" with an uncertainty of 5.4 arcseconds radius (3 sigma). This position is 69 arcseconds from the refined BAT position given in GCN 3667 (H. Krimm et al), 2.6 arcseconds from the XRT position given in GCN 3665 and 7.1 arcseconds from the XRT position given in GCN 3669 (Romano et al.). This message can be cited.