The 39 - 87 metre wide asteroid 2011 HC24 will make a close pass (5.9 lunar distances, 0.0151 AU), travelling at 15.35 km/second, to the Earth-Moon system on the 12th May, 2011 @ 13:36 UT ±01:47.
Orbital elements:
2011 HC24 Earth MOID = 0.0009 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC
M 310.25666 (2000.0) P Q
n 0.36067970 Peri. 69.53732 +0.47014954 +0.88220632
a 1.9545866 Node 228.53395 -0.82209870 +0.42705736
e 0.6049844 Incl. 1.98164 -0.32111234 +0.19832808
P 2.73 H 24.2 G 0.15 U 8