Orbital elements: C/2009 O4 (Hill)T 2009 Dec. 1.451 TT MPCq 2.86118 (2000.0) P Q Peri. 210.640 +0.850145 -0.514159 Node 173.459 +0.075039 +0.331752e 1.0 Incl. 94.583 -0.521174 -0.790937From 74 observations 2009 July 30-31.