GCN Circular 13432
W. Zheng (U Mich), report on behalf of the ROTSE collaboration: ROTSE-IIIc, located at the H.E.S.S. site at Mt. Gamsberg, Namibia, responded to GRB 120711A (Integral trigger 6599). The first image was at 02:45:54.4 UT, 59.1 s after the burst (5.4 s after the GCN notice time). We also detected the suggested optical afterglow found by Skynet/PROMPT (Lacluyze et al., GCN 13430). The afterglow is detected in our first co-add image with Mag ~14.2 (mean time of ~60s) and decayed fainter than 15.8 mag in the second co-add (mean time of 460s). The unfiltered images are calibrated relative to USNO A2.0. Continuing observations are in progress.