The 210 - 470 metre wide asteroid 2010 VX139 will make a close pass (0.2494 AU), travelling at 14.30 km/second, to the Earth-Moon system on the 20th April, 2012 @ 13:56 UT ±00:01.
The 210 - 470 metre wide asteroid 2010 VX139 will make a close pass (145.3 lunar distances, 0.3720 AU), travelling at 11.36 km/second, to the Earth-Moon system on the 31st December, 2011 @ 16:29 UT ±00:01.
The 210 - 470 metre wide asteroid 2010 VX139 will make a close pass (76.6 lunar distances, 0.1968 AU), travelling at 13.11 km/second, to the Earth-Moon system on the 28th May, 2011 @ 04:33 UT ±00:11.