TITLE: GCN CIRCULAR NUMBER: 19407 SUBJECT: GRB 160509A: Preliminary XRT positon DATE: 16/05/09 14:20:01 GMT FROM: Jamie A. Kennea at PSU/Swift-XRT J. A. Kennea (PSU) reports on behalf of the Swift team: Swift performed a target of opportunity observation of the Fermi/LAT detected GRB 160509A (GCN 19403). In rapid analysis of XRT downlinked data we find a bright uncatalogued point source at the following location: RA/Dec (J2000) = 311.74406, 76.10634, which is equivalent to: RA(J2000) = 20h 46m 58.6s Dec(J2000) = +76d 06m 22.8s with an estimated uncertainty of 8 arcseconds (90% confidence). This position lies 24.6' away from the LAT onboard position, and 8 arcminutes from a LAT ground refined position (Racusin, private communication), so we suggest this is likely the afterglow of GRB 160509A. A refined position will be issued soon. Swift observations of this burst are on-going.