Scientific American, May 2009 issue, listed the minimum distance as 72,200 km (p. 26) 2009 DD passed farther away (40 thousand miles versus 4 thousand miles) but was substantially larger than 2004 FU162, a small asteroid about 6 m (20 ft) across which came within about 6500 kilometers in 2004, and is more similar in size to 2004 FH.