The 210 - 460 metre wide asteroid 2011 NZ will make a close pass (73.5 lunar distances, 0.1889 AU), travelling at 4.82 km/second, to the Earth-Moon system on the 29th July, 2011 @ 10:35 UT ±1 day 06:48.
Orbital elements:
2011 NZ Earth MOID = 0.1893 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 7.66202 (2000.0) P Q
n 0.31894629 Peri. 15.74818 +0.64001115 +0.76057613
a 2.1215715 Node 294.17718 -0.71724679 +0.54043523
e 0.4335019 Incl. 6.87043 -0.27557717 +0.35979676
P 3.09 H 20.5 G 0.15 U 7