GCN Circular 14203
M. De Pasquale (MSSL-UCL), A. Beardmore (Univ. Leicester) report, on behalf of the Swift team: The X-ray source described in GCN circ. 14188 (Beardmore et al. 2013) is not detected anymore in XRT observations performed between 33 and 550 ks after the trigger, for a total of 35.2 ks of integration time. The 3 sigma upper limit is 0.00089 count/s, appreciably lower than the count rate observed in previous observations. Because of the fading behaviour of this source, we conclude it was likely the X-ray afterglow of GRB130206A. We also note that successive analysis of late data has reduced the error circle radius of the source to 4.6'' (90% confidence level).