Orbital elements:
2012 FX23 Earth MOID = 0.0536 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 349.61474 (2000.0) P Q
n 0.35496573 Peri. 22.64282 -0.90071055 +0.43428749
a 1.9755064 Node 183.15894 -0.42239188 -0.88127124
e 0.4764276 Incl. 11.21531 -0.10151651 -0.18642796
P 2.78 H 26.2 G 0.15 U 7
The 15 - 34 metre wide asteroid 2012 FX23 will make a close pass (22.2 lunar distances, 0.0571 AU), travelling at 9.27 km/second, to the Earth-Moon system on the 28th March, 2012 @ 11:34 UT ±00:27.