The 20 - 44 metre wide asteroid 2012 AW10 made a close pass (3.4 lunar distances, 0.0087 AU), travelling at 10.97 km/second, to the Earth-Moon system on the 9th January, 2012 @ 16:21 UT ±00:46.
Orbital elements:
2012 AW10 Earth MOID = 0.0081 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 56.35621 (2000.0) P Q
n 0.53204623 Peri. 300.13030 +0.60362956 -0.78842836
a 1.5083535 Node 112.26544 +0.76840518 +0.53574484
e 0.4350628 Incl. 7.34882 +0.21256723 +0.30225517
P 1.85 H 25.7 G 0.15 U 8