TITLE: GCN CIRCULAR NUMBER: 15821 SUBJECT: GRB140209A: Swift/UVOT observations. DATE: 14/02/12 12:43:35 GMT FROM: Massimiliano de Pasquale at MSSL-UCL M. De Pasquale (MSSL-UCL) & S. B. Cenko (GSFC) report on behalf of the Swift team: Swift/UVOT started observations of GRB140209A (Cenko et al., GCN Circ. 15808) 188.1 ks after the burst trigger. No optical counterpart is detected at the position of XRT counterpart (D'Elia et al., GCN Circ 15819) and the P60 Source (Perley et al., GCN Circ 15809) in summed exposures. Preliminary 3-sigma upper limit using the UVOT photometric system (Breeveld et al al. 2011, AIP Conf. Proc. 1358, 373) is: Filter T_start (s) T_stop (s) Exp(s) Mag white 188075 195531 2689 >22.7 No correction has been made for the expected Galactic extinction corresponding to E(B-V) = 0.03 in the direction of the burst (Schlegel et al. 1998).