GCN Circular 5045
P.A.Milne (Steward Obs) reports on behalf of the Super-LOTIS GRB team: We observed the location of the BAT error circle of the GRB 060501, as reported in GCN 5040 (Swift trigger 208050; La Parola et al.,) using the 60cm Super-LOTIS telescope at Kitt Peak, Arizona. Imaging began at 09:30:30 UT, 1.25 hours after the burst, and consisted of three series of one-minute exposures in the R filter (12, 23 & 17 images per series, respectively). Seeing was typically 2.7". A source is detected at the positionreported by Fox and Cenko (GCN 5044) in all three summed images created from the individual exposures. Using 8 stars from the USNO-B1 catalog, a single image produced from the first two series led to the following magnitudes for the suggested counterpart, R1=18.39 +/- 0.11, R2=18.54 +/- 0.12. However, these magnitudes are very close to the magnitude of the star 1339-0447675, which is listed at a position consistent with the optical counterpart position listed by Fox and Cenko. We therefore suggest that the optical counterpart candidate reported in GCN 5044 is instead star 1339-0447675 from the USNO-B1.0 catalog. Analysis of the last series of exposures is on-going.