TITLE: GCN CIRCULAR NUMBER: 14351 SUBJECT: GRB 130306A: Confirmation of the X-ray Afterglow DATE: 13/03/28 17:32:24 GMT FROM: Mike Siegel at PSU/Swift MOC M. H. Siegel (PSU) reports on behalf of the Swift team: Swift performed a follow-up observation of the possible X-ray afterglow of the BAT-detected GRB 130306A (Siegel et al., GCN Circ. 14287). A 5 ks observation took place on 14 March 2013, eight days after the burst. The reported source faded by at least a factor of three, from .009 counts s^-1 (observed flux 4.2 x 10^-13 erg cm^-2 s^-1) to an upper limit of of .003 counts s^-1 (observed flux 1.5 x 10^-13 erg cm^-2 s^-1). We therefore confirm that this was the X-ray afterglow of GRB 130306A.