TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5127 SUBJECT: GRB 060512: 1.54m Kuiper Observations DATE: 06/05/13 08:56:52 GMT FROM: Peter A. Milne at Super-LOTIS P.A.Milne (Steward Obs) on behalf of the Super-LOTIS GRB team reports: We observed the field of GRB 060512 starting at UT=05:48 (~6.6 hrs after the burst), with the 1.54m Kuiper telescope at Mt. Bigelow, AZ. We obtained 5 x 300-sec images in the R-band filter. The mean epoch of observations was 05:59 13 May 2006. Observing conditions were affected by thin clouds in addition to the bright moon. We detect the candidate optical counterpart reported by Cummings et al. (GCN 5117), Mundell and Steele (GCN 5118), Malesani et al. (GCN 5122) , Cenko (GCN 5125), and Hearty et al. (GCN 5126). Based upon comparison with USNO-B stars, we estimate the magnitude to be R=20.14 +/- 0.16. This message may be cited.