TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4225 SUBJECT: GRB 051109B: Super-LOTIS Observations DATE: 05/11/09 12:08:22 GMT FROM: Peter A. Milne at Super-LOTIS P.A.Milne, G.G.Williams (Steward Obs), H.-S.Park (LLNL), S.A. Barthelmy (GSFC) on behalf of the Super-LOTIS GRB team report: The automated 0.6-m Super-LOTIS telescope began observations of the error region of GRB051109B (Swift trigger 163170) at 08:40:35.3 UT, 56 seconds after the burst. We obtained a series of images in the R filter. The field was at high airmass (at least secz=2.36), with thin clouds. The source reported by the SWIFT/UVOT (Tagliaferri et al., GCN4222) is not apparent in the first 10 second image (limiting magnitude ~ 17.0), nor in subsequent co-added images. Further analysis of the complete observing sequence is on-going.