The 42 - 94 metre wide asteroid 1997 YM9 will made a close pass (71.9 lunar distances, 0.1848 AU), travelling at 6.71 km/second, to the Earth-Moon system on the 3rd May 2014 @ 20:03 UT ±00:01.
The 42 - 94 metre wide asteroid 1997 YM9 will make a close pass (72.3 lunar distances, 0.1859 AU), travelling at 3.74 km/second, to the Earth-Moon system on the 22nd November, 2013 @ 03:02 UT ±00:01