It is an S-type asteroid about 13 Ã -- 13 Ã -- 33 km in size , the second-biggest near-Earth asteroid ( NEA ) after 1036 Ganymed , belonging to the Amors . It is an S-type asteroid approximately 34.4 Ã -- 11.2 Ã -- 11.2 km in size , the second-largest near-Earth asteroid ( NEA ) after 1036 Ganymed , belonging to the Amors .