GCN Circular 4218
P. A. Milne, G. G. Williams (U. of Arizona), H. S. Park (LLNL), S. Barthelmy (GSFC) The automated 0.6-m Super-LOTIS telescope began observations of the error region of GRB051109 (Swift trigger 163136) at 01:13:03.6 UT, 43.0 seconds after the burst. The OT detected by the Rykoff et al. (GCN 4211) is clearly visible in the first image and subsequent images. We confirm that the OT has faded in images taken 13 minutes after the burst. The R-band magnitude of the afterglow in the first image is: UT Time Delta-Time R magnitude error 01:13:03.6 43.0 s 15.27 0.13 Reported magnitudes are relative to the R1 magnitudes of five stars in the USNO-B catalog. Additional observations are underway.