Update: The 29 - 65 metre wide asteroid 2012 HB25 will make a close pass (11.1 lunar distances, 0.0284 AU), travelling at 10.52 km/second, to the Earth-Moon system on the 11th May, 2012 @ 23:04 UT ±00:01.
Orbital elements:
2012 HB25 Earth MOID = 0.0007 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 338.77697 (2000.0) P Q
n 0.25693872 Peri. 333.13740 -0.13743557 +0.99019844
a 2.4504716 Node 288.95457 -0.90398413 -0.13565331
e 0.6040210 Incl. 1.50680 -0.40487549 -0.03324491
P 3.84 H 24.7 G 0.15 U 8
The 29 - 65 metre wide asteroid 2012 HB25 will make a close pass (11.2 lunar distances, 0.0288 AU), travelling at 10.60 km/second, to the Earth-Moon system on the 12th May, 2012 @ 00:25 UT ±12:04.