Orbital elements:
2011 YY28 Earth MOID = 0.1553 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 21.51386 (2000.0) P Q
n 0.15225990 Peri. 117.24188 +0.90952620 -0.39528912
a 3.4733272 Node 266.27950 +0.32106391 +0.86446704
e 0.6836514 Incl. 7.39778 +0.26396981 +0.31055312
P 6.47 H 21.3 G 0.15 U 8