OAA computing section circular NK 914 C/2001 Q1 (NEAT)
The following improved orbital elements, by S. Nakano, are from 71 observations 2001 July 16 to 2003 Jan. 27. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.67 arc second. Epoch = 2001 Sept. 8.0 TT T = 2001 Sept.20.87069 +/- 0.01555 (m.e.) TT Peri. = 175.46159 +/- 0.00150 Node = 139.26143 +/- 0.00003 (2000.0) Inc. = 66.94966 +/- 0.00013 q = 5.8339900 +/- 0.0000350 AU e = 0.9660075 +/- 0.0000489 1/a = +0.0058266 +/- 0.0000084 1/AU origin = +0.005664 (Q= 7) future = +0.006042 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2001/ 010819 046 0.6- 0.0 010916 360 0.6- 0.2- 010716 699 0.8- 1.2- 010822 170 (0.2- 3.0-) 010916 360 0.2- 0.7- 010716 699 0.2- 0.8+ 010822 170 (4.9+ 0.8-) 010916 360 0.3- 0.4- 010716 699 0.1+ 0.1+ 010823 402 0.1- 0.9- 010917 699 (0.7+ 2.0+) 010716 699 0.7+ 0.3- 010823 402 0.0 0.8- 010917 699 1.0+ 0.7- 010817 644 0.1+ 0.4+ 010823 402 0.3+ 0.1+ 010917 699 0.3+ 0.4+ 010817 644 0.3+ 0.1+ 010824 699 1.1+ 0.4+ 010917 699 0.0 0.3- 010817 644 0.2+ 0.1- 010824 699 1.1+ 0.9- 010920 704 0.3+ 0.7+ 010818 644 0.0 0.2+ 010824 699 0.5- 1.3- 010920 704 0.0 0.6+ 010818 644 0.1- 0.2+ 010824 699 0.5+ 1.1- 010920 704 1.3+ 1.5+ 010818 644 0.1+ 0.0 010824 704 0.9- 1.0+ 010920 704 0.1- 1.0- 010818 644 0.2+ 0.1+ 010824 704 0.5+ 0.0 010920 402 0.5- 0.2+ 010818 644 0.1+ 0.0 010824 704 0.7+ 0.8+ 010920 402 0.1- 0.9- 010818 644 0.3+ 0.2+ 010824 704 0.0 1.2- 010920 402 0.1- 0.2- 010818 611 (1.8+ 2.3-) 010826 046 0.9- 0.8+ 010922 704 0.4+ 0.6+ 010818 611 (4.2+ 0.1-) 010826 046 0.2+ 0.2- 010922 704 0.1+ 0.8+ 010818 046 0.3- 1.0+ 010826 046 1.2- 0.5+ 010922 704 0.5- 0.2+ 010818 046 (2.8+ 0.9+) 010907 699 1.1- 1.2- 011012 360 0.0 0.5+ 010818 046 (3.9+ 1.9+) 010907 699 1.0- 0.9+ 011012 360 0.9- 0.7- 010818 557 0.2- 0.3- 010907 699 1.1+ 0.4+ 011012 360 (0.1- 2.0-) 010818 046 0.5- 1.5+ 010907 699 (0.6+ 2.0+) 2002/ 010818 557 0.8- 0.3- 010908 704 1.5+ 0.6+ 020809 474 0.9- 0.1+ 010818 557 1.3+ 0.1- 010908 704 1.7+ 1.6+ 020809 474 0.7+ 0.4- 010818 952 (2.3+ 0.4+) 010908 704 0.8- 1.2- 2003/ 010818 952 1.0+ 1.1+ 010908 704 0.2+ 1.3- 030127 809 0.0 0.2+ 010818 952 (5.5+ 4.6+) 010910 704 0.4- 0.6- 030127 809 0.2+ 0.0 010819 046 0.9- 0.0 010910 704 0.6- 0.1- 030127 809 0.0 0.1+ 010819 046 0.6- 0.5+ 010910 704 0.0 0.5- 010819 046 0.8- 0.1+ 010910 704 0.2- 0.1- ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2003 Feb. 17