GCN Circular 10365
B. E. Cobb, S. B. Cenko, J. S. Bloom (UC Berkeley) report on behalf of a larger collaboration: We have imaged the field of GRB 100205A (Racusin et al., GCN 10361) with the Gemini Multi-Object Spectrograph (GMOS) on the 8 m Gemini South telescope beginning at 05:48 UT on 05 February 2010 (~ 40 minutes after the burst trigger time). Observations were conducted in the r' filter for a total of 600 seconds. We find no new point sources at the location of the X-ray afterglow (Racusin et al., GCN 10361). The preliminary limiting magnitude of our image is r' >~ 23.4 mag for isolated point sources (assuming the SDSS value of r = 17.76 for the object at RA: 09:25:28.956, Dec: +31:44:20.61).