The 240 - 530 metre wide asteroid 2011 NY will make a close pass (53.5 lunar distances, 0.1376 AU), travelling at 10.38 km/second, to the Earth-Moon system on the 21st July, 2011 @ 15:58 UT ±03:30.
Orbital elements:
2011 NY Earth MOID = 0.1291 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 2.07169 (2000.0) P Q
n 0.29111062 Peri. 87.37080 +0.89659675 +0.42407467
a 2.2547446 Node 247.51140 -0.44096010 +0.82835702
e 0.5518168 Incl. 7.93635 -0.04084683 +0.36604006
P 3.39 H 20.1 G 0.15 U 8