TITLE: GCN CIRCULAR NUMBER: 11732 SUBJECT: GRB 110213B: P60 Optical Afterglow Candidate DATE: 11/02/15 06:24:24 GMT FROM: S. Bradley Cenko at Caltech S. B. Cenko (UC Berkeley), E. O. Ofek, S. R. Kulkarni (Caltech), and A. Rau (MPE Garching) report on behalf of a larger collaboration: We have imaged the location of the possible X-ray afterglow (Source "B"; Nakahira et al., GCN 11725) of the MAXI GRB110213B (Negoro et al., GCN 11716) with the automated Palomar 60-inch telescope. Observations began at 3:38 UT on 2011 February 15 (~ 37.1 hours after the burst) in the r' filter. We detect a source near the reported XRT position with coordinates (J2000.0): 02:47:01.41 +01:08:46.3 Using several nearby objects in the USNO-B1 catalog for reference, we measure a magnitude at this time of R = 19.8. No object is present at this location, either in the USNO-B1 catalog or the Digitized Sky Survey. Given the positional coincidence and the relative brightness, we consider it likely this is the optical afterglow of GRB110213B. However, future observations to establish fading will be required for confirmation.