TITLE: GCN CIRCULAR NUMBER: 16373 SUBJECT: GRB 140606B: Swift XRT refined analysis DATE: 14/06/09 21:37:28 GMT FROM: Vanessa Mangano at PSU V. Mangano and D.N. Burrows (PSU) on behalf of the Swift-XRT team: Swift XRT performed a second 5 ks ToO observation of the field of GRB 140606B on June 09 2014, starting about 273.8 ks since the Fermi/GBM trigger. The XRT source reported in Mangano et al. (GCN Circ. 16366) is still detected. The X-ray position, with a 90% error radius of 2.3 arcsec, is 1.9 arcsec from the optical afterglow candidate iPTF14bfu proposed by Singer et al. (GCN Circ. 16360). The XRT light curve shows marginal evidence of decay. Further observations are planned to confirm it. This circular is an official product of the Swift-XRT team.