TITLE: GCN CIRCULAR NUMBER: 12644 SUBJECT: GRB 111208A: Lightbuckets Optical Observations DATE: 11/12/09 20:35:17 GMT FROM: Tilan Ukwatta at GSFC/GWU T. N. Ukwatta (MSU), E. Sonbas (GSFC/Adiyaman Univ.), T. Sakamoto (GSFC/UMBC), N. Gehrels (GSFC), J. Linnemann (MSU), K. Tollefson (MSU), and U. Abeysekara (MSU) We observed the field of Swift GRB 111208A (Sakamoto et al., GCN 12628) with the Lightbuckets 0.43m rental telescope LB-0002 in South Alpen, France. Ten 60 s observations were carried out in the R filter starting 2011-12-08 at 17:04:45 UT (~ 31 ks after the GRB trigger). This observation is in temporal coincidence with the Swift XRT TOO observation which spanned from 24.3 ks to 34.9 ks (Wolf et al., GCN 12631). In the stacked R band image, we do not detect an optical afterglow at the XRT location. Our upper-limit based on the observation is given below. Time after trigger Exposure (s) Filter Magnitude 8.61 hours 600 R > 19