TITLE: GCN CIRCULAR NUMBER: 11506 SUBJECT: GRB 101225A: P60 Observations DATE: 10/12/29 18:32:50 GMT FROM: S. Bradley Cenko at Caltech S. B. Cenko (UC Berkeley) reports on behalf of a larger collaboration: We have imaged the field of GRB101225A (Racusin et al., GCN 11493) with the automated Palomar 60 inch telescope. Images were obtained in the Sloan r' and i' filters on 2010 December 28 beginning at 01:49 UT (~ 55.2 hours after the BAT trigger time). We detect a faint source at the location of the optical afterglow (Xu et al., GCN 11495) in both filters. Using a set of nearby sources from the USNO-B1 catalog for reference, we measure the following magnitudes for the source at this time: R = 22.8 +/- 0.2; I = 22.3 +/- 0.2. Our R-band measurement is consistent with that found by Wiersema et al (GCN 11502) at t ~ 28 hours, but fainter (in both R and I) than the values reported by Thoene at al (GCN 11503) at a similar time. In either case, we find no evidence for a re-brightening as of yet, as would be expected for the emergence of supernova emission from a nearby event like GRB060218/SN2006aj.