TITLE: GCN CIRCULAR NUMBER: 9045 SUBJECT: GRB 090328: Possible Swift/XRT detection DATE: 09/03/29 04:27:22 GMT FROM: Jamie A. Kennea at PSU/Swift-XRT J. Kennea (PSU) reports on behalf of the Swift/XRT Team: Swift began a TOO observation observation of the LAT error circle of GRB 090328 (McEnery et al, GCN #9044) at 01:26UT March 29th, 2009. Preliminary analysis of the downlinked XRT data finds an uncatalogued X-ray source approximately 10 arcminutes from the centre of the LAT error circle, at the following location: RA, Dec = 90.66485, -41.88421 which is equivalent to: RA(J2000) = 06h 02m 39.6s Dec(J2000)= -41d 53m 03.2s with an estimated uncertainty of 6 arcseconds radius (90% confidence). We cannot confirm at this time if the afterglow candidate is fading.