Orbital elements:
2012 HG31 PHA, Earth MOID = 0.0093 AU
Epoch 2013 Nov. 4.0 TT = JDT 2456600.5 MPC
M 135.36743 (2000.0) P Q
n 0.30731723 Peri. 173.05332 +0.78224213 +0.61595842
a 2.1747605 Node 148.32030 -0.57976922 +0.77455515
e 0.5312350 Incl. 10.22592 -0.22795812 +0.14373429
P 3.21 H 18.9 G 0.15 U 1
The 440 - 990 metre wide asteroid 2012 HG31 will make a close pass (27.9 lunar distances, 0.0716 AU), travelling at 10.33 km/second, to the Earth-Moon system on the 3rd September, 2012 @ 05:56 UT ±00:01.
Orbital elements:
2012 HG31 PHA, Earth MOID = 0.0120 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 311.01772 (2000.0) P Q
n 0.30765311 Peri. 172.93511 +0.78211531 +0.61616962
a 2.1731774 Node 148.42569 -0.58004374 +0.77437210
e 0.5301421 Incl. 10.21990 -0.22769477 +0.14381536
P 3.20 H 18.8 G 0.15 U 6