The 230 - 510 metre wide asteroid 2012 HZ33 will make a close pass (61.9 lunar distances, 0.1591 AU), travelling at 12.76 km/second, to the Earth-Moon system on the 24th May, 2012 @ 08:46 UT ±00:01.
Orbital elements:
2012 HZ33 PHA, Earth MOID = 0.0010 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 272.37476 (2000.0) P Q
n 0.74768465 Peri. 230.99970 +0.21872183 +0.91732668
a 1.2022379 Node 54.88309 -0.72127803 +0.38160825
e 0.2127760 Incl. 23.99788 -0.65720527 -0.11352051
P 1.32 H 20.1 G 0.15 U 8