Exploration Boldly Pages Home Wednesday, November 9, 2011 Asteroid 2005 YU55 This radar image of asteroid 2005 YU55 was obtained NASA 's Deep Space Network antenna in Goldstone, California on November 7, 2011, at 11:45 a.m. PST (2:45 p.m. EST /1945 UTC ), when the space rock was at 3.6 lunar