The 37 - 82 metre wide asteroid 2002 JR100 will make a close pass (10.7 lunar distances, 0.02768 AU), travelling at 7.68 km/second, to the Earth on the 28th April 2018 @ 21:15 UT ±00:01.
The 38 - 84 metre wide asteroid 2002 JR100 will make a close pass (19.8 lunar distances, 0.0509 AU), travelling at 7.87 km/second, to the Earth-Moon system on the 28th August, 2011 @ 11:44 UT ±00:01.