Comet C/2009 P2 (Boattini) makes its closest approach to the Earth (6.440 AU) on the 18th July, 2011.
Orbital elements: C/2009 P2 = 2008 TQ137 = 2008 VP28 (Boattini)Id. S. NakanoEpoch 2010 Feb. 13.0 TT = JDT 2455240.5T 2010 Feb. 10.87843 TT MPCq 6.5438173 (2000.0) P Qz -0.0002802 Peri. 76.08944 +0.92776331 -0.27920987 +/-0.0000062 Node 60.39208 -0.33996422 -0.90598365e 1.0018338 Incl. 163.45518 +0.15388170 -0.31817523
Orbital elements: C/2009 P2 (Boattini)T 2010 Feb. 8.761 TT MPCq 6.54593 (2000.0) P Q Peri. 75.851 +0.928643 -0.276317 Node 60.334 -0.337074 -0.907143e 1.0 Incl. 163.449 +0.154932 -0.317397From 176 observations 2009 Aug. 15-Sept. 2.
Orbital elements: C/2009 P2 (Boattini)T 2010 Feb. 6.939 TT MPCq 6.54867 (2000.0) P Q Peri. 75.677 +0.929385 -0.273810 Node 60.316 -0.334608 -0.908083e 1.0 Incl. 163.446 +0.155824 -0.316879From 160 observations 2009 Aug. 15-28.
Orbital elements: C/2009 P2 (Boattini)T 2010 Feb. 17.433 TT MPCq 6.53217 (2000.0) P Q Peri. 76.609 +0.924971 -0.288382 Node 60.346 -0.348861 -0.902654e 1.0 Incl. 163.452 +0.150744 -0.319454From 118 observations 2009 Aug. 15-22.
Orbital elements: C/2009 P2 (Boattini)T 2010 July 24.182 TT MPCq 6.13366 (2000.0) P Q Peri. 92.679 +0.822356 -0.512450 Node 61.741 -0.565768 -0.782547e 1.0 Incl. 163.699 +0.060311 -0.353575From 92 observations 2009 Aug. 15-18.