TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4728 SUBJECT: GRB060210: Early Optical Observations DATE: 06/02/10 07:29:15 GMT FROM: Grant Williams at Steward Observatory G. G. Williams (MMTO) and P. A. Milne (Steward Observatory), on behalf of the Super-LOTIS Collaboration, report: The robotic 0.6-m Super-LOTIS telescope began observing the error box of GRB060210 (Swift Trigger 180977, GCN 4724) at 04:59:44.9 UT, 55 seconds after the burst. Our initial observations include 5 x 10s exposures, 5 x 20s exposures, and 30 x 60s exposures, all in the R-band. We do not detect the afterglow reported by Fox et al. (GCN 4723) and Li et al. (GCN 4725) in our earliest exposure to the following 5-sigma limiting magnitude using USNO-B1 stars: t obs (UT) exp t (s) t-t_0 (s) Limit -------------------------------------------------------- 04:59:44.9 10 55.1 R > 17.5 Additional multi-band observations and analysis including image stacking are ongoing.