TITLE: GCN CIRCULAR NUMBER: 11729 SUBJECT: GRB 110212A: Swift XRT and UVOT observations DATE: 11/02/14 19:59:12 GMT FROM: Valerio D'Elia at ASDC V. D'Elia, G. Stratta (ASDC), N.P.M. Kuin (MSSL-UCL), report on behalf of the Swift team: Swift XRT and UVOT instruments began observing the field of the BAT burst GRB 110212A (D'Elia et al., GCN circ 11699) on 2011-02-13 at 23:21, that is, 46 h (166.3 ks) after the burst trigger due to a Moon constraint. The observations ended on 2011-02-14 at 02:47. No candidate afterglow is detected in the BAT error circle. UVOT observed in the uvm2 filter, with a total exposure time of 5885 s. No new source is found in or near the BAT error circle from comparison to the DSS image. The 5-sigma upper limit for a source is uvm2 > 20.3 magnitudes. XRT observations have a total exposure time of 5967 s, and yield a three sigma upper limit of 1.4e-3 counts/second for any new source in the BAT error circle. This circular is an official product of the Swift Team. ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.