Orbital elements:
2011 SY120 Earth MOID = 0.0506 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 35.55581 (2000.0) P Q
n 0.73481608 Peri. 114.97790 -0.45675074 -0.88927080
a 1.2162335 Node 2.60138 +0.49682853 -0.27738013
e 0.2296531 Incl. 31.92951 +0.73792965 -0.36367252
P 1.34 H 23.0 G 0.15 U 4
The 65 - 150 metre wide asteroid 2011 SY120 will make a close pass (20.1 lunar distances, 0.0517 AU), travelling at 17.55 km/second, to the Earth-Moon system on the 21st March, 2012 @ 22:15 UT ±05:10.
Orbital elements:
2011 SY120 Earth MOID = 0.0475 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 248.61387 (2000.0) P Q
n 0.73576788 Peri. 115.01663 -0.45743572 -0.88891976
a 1.2151843 Node 2.60470 +0.49800361 -0.27841047
e 0.2305740 Incl. 31.82279 +0.73671227 -0.36374341
P 1.34 H 23.1 G 0.15 U 9