TITLE: GCN CIRCULAR NUMBER: 12435 SUBJECT: GRB 111005A: ATCA 18 GHz decay DATE: 11/10/10 10:55:05 GMT FROM: Dong Xu at Weizmann Inst D. Xu (WIS), M. Michalowski (U. Edinburgh), J. Stevens, P. Edwards (CSIRO) report: GRB 111005A (Saxton et al., GCN 12413) was observed with the Australia Telescope Compact Array (ATCA), starting at 02:43 UT, 10th Oct. 2011 (i.e., 4.8 days after the burst) at the frequencies of 18, 34 and 94 GHz. Compared with our earlier detection (Michalowski et al., GCN 12422) the afterglow has decayed by 0.5 mJy at 18 GHz.