The 51 - 110 metre wide asteroid 2012 HO1 will make a close pass (48.2 lunar distances, 0.12404 AU), travelling at 5.87 km/second, to the Earth on the 1st May 2018 @ 15:36 UT ±00:01.
The 56 - 120 metre wide asteroid 2012 HO1 will make a close pass (50.1 LD, 0.1286 AU) travelling at 5.88 km/second, to the Earth-Moon system on the 2nd May 2015 @ 18:13 UT ±00:01.
Update: The 55 - 120 metre wide asteroid 2012 HO1 will make a close pass (55.2 lunar distances, 0.1417 AU), travelling at 6.11 km/second, to the Earth-Moon system on the 4th May, 2012 @ 19:21 UT ±00:34.
The 55 - 120 metre wide asteroid 2012 HO1 will make a close pass (55.4 lunar distances, 0.1425 AU), travelling at 6.08 km/second, to the Earth-Moon system on the 4th May, 2012 @ 11:48 UT ±1 day 01:43.
Orbital elements:
2012 HO1 Earth MOID = 0.1187 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 342.62288 (2000.0) P Q
n 0.32998868 Peri. 197.13932 -0.75294636 +0.65608399
a 2.0739742 Node 24.09719 -0.58811234 -0.63590945
e 0.4596230 Incl. 7.20971 -0.29528910 -0.40641478
P 2.99 H 23.4 G 0.15 U 8