TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3359 SUBJECT: GRB 050504: Swift XRT position DATE: 05/05/05 17:31:15 GMT FROM: Jamie A. Kennea at PSU/Swift-XRT J. A. Kennea, D. N. Burrows (PSU), K. Page, C. P. Hurkett (U. Leicester), B. Zhang (UNLV) and N. Gehrels (NASA/GSFC) report on behalf of the Swift XRT team: INTEGRAL detected GRB050504 at 08:00:52 UT on 4th May 2005 (GCN Circ 3348). The Swift observatory executed an Target of Opportunity observation of the INTEGRAL position and the XRT began taking data at 13:27:40 UT. In ground processing of 9218s of Photon Counting mode data we detect a faint uncataloged X-ray source located at: RA(J2000) = 13:24:01.3, Dec(J2000) = +40:42:12 We estimate an uncertainty of 6.9 arcseconds radius (90% containment). This position is 35 arcseconds from the INTEGRAL position reported in GCN 3348.