Orbital elements:
2011 HR Earth MOID = 0.2596 AU
Epoch 2011 Apr. 9.0 TT = JDT 2455660.5 MPC
M 260.50589 (2000.0) P Q
n 0.60684735 Peri. 222.53567 +0.61939613 +0.72147452
a 1.3817084 Node 88.20370 -0.61092242 +0.69058444
e 0.0936500 Incl. 18.04145 -0.49307426 +0.05067190
P 1.62 H 19.5 G 0.15
From 12 observations 2011 Apr. 24-25.