Orbital elements: 2009 HB21 Earth MOID = 0.0821 AU Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC M 43.52634 (2000.0) P Q n 0.43897493 Peri. 317.10843 -0.89135350 -0.35090549 a 1.7146530 Node 206.89021 +0.29822597 -0.93071109 e 0.4140335 Incl. 39.38311 -0.34139450 +0.10316107 P 2.25 H 23.0 G 0.15 U 9