TITLE: GCN CIRCULAR NUMBER: 6887 SUBJECT: GRB 071011: Early Super-LOTIS Observations DATE: 07/10/11 17:36:50 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 GRB 071011 (Swift Trigger 293924, Marshall et al. GCN 6882) at 12:40:53.4 UT, 40.4 seconds after the trigger. Our initial observations include 5 x 10s exposures, 5 x 20s exposures, and 30 x 60s exposures, all in the R-band. The observations occurred during morning twilight at a starting airmass of 2.16. In our earliest exposure, we do not detect the afterglow candidate reported by Perley (GCN 6883) and confirmed by Iizuka (GCN 6886) or any other candidates in the BAT error circle to the following 3-sigma limiting magnitude determined from nearby USNO-B1.0 stars: t_start (UT) exp t (s) t_start-t_0 (s) Limit -------------------------------------------------------- 12:40:53.4 10.0 40.4 R > 16.90 Subsequent exposures also do not reveal any additional candidates. Analysis is ongoing.