Update The 52 - 120 metre wide asteroid 2011 GR59 will make a close pass (13.7 lunar distances, 0.0352 AU), travelling at 5.49 km/second, to the Earth-Moon system on the 26th April, 2011 @ 20:05 UT ±00:01.
The 61 - 140 metre wide asteroid 2011 GR59 will make a close pass (14.0 lunar distances, 0.0359 AU), travelling at 5.23 km/second, to the Earth-Moon system on the 27th April, 2011 @ 06:56 UT ±10:27.
Orbital elements:
2011 GR59 Earth MOID = 0.0088 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC
M 277.73049 (2000.0) P Q
n 0.71179908 Peri. 112.02907 -0.19986099 +0.97968498
a 1.2423132 Node 146.42872 -0.90962835 -0.17924941
e 0.2405184 Incl. 1.71202 -0.36418657 -0.08992772
P 1.38 H 23.3 G 0.15 U 9