The 15 - 35 metre wide asteroid 2011 FT9 made a close pass (7.5 lunar distances, 0.0194 AU), travelling at 6.28 km/second, to the Earth-Moon system on the 1st April, 2011 @ 03:25 UT ±00:01.
Orbital elements:
2011 FT9 Earth MOID = 0.0088 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC
M 322.84196 (2000.0) P Q
n 0.52123378 Peri. 184.91752 -0.83237638 +0.55381908
a 1.5291415 Node 28.74285 -0.50698985 -0.74573386
e 0.3539338 Incl. 2.48288 -0.22385453 -0.37035851
P 1.89 H 26.2 G 0.15 U 8