TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4816 SUBJECT: GRB060218: Optical brightening in V and R DATE: 06/02/23 10:35:09 GMT FROM: Andreas O. Jaunsen at ITA Jan-Erik Ovaldsen (ITA), Dong Xu (DARK, NBI), Josefine H. Selj (ITA), Andreas O. Jaunsen (ITA), Chloe Feron, Christina Thoene, Johan P. U. Fynbo, and Jens Hjorth (DARK, NBI) report: From observations of GRB060218/SN 2006aj (Cusumano et al., GCN #4775) with DFOSC on the Danish 1.5m telescope at La Silla/ESO we find that the optical afterglow + SN 2006aj has brightened by 0.2 (+/- 0.01) mag in R and 0.1 (+/- 0.02) mag in V from Feb 20.03 UT to Feb 21.03 UT. An optical brightening is in line with the notion that the underlying SN 2006aj has still to reach its maximum, as noted in previous reports.