OAA computing section circular NK 896 P/2001 M10 (NEAT)
The following improved orbital elements, by S. Nakano, are from 93 observations 2001 June 20 to 2002 Nov. 28. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.55 arc second. Epoch = 2001 June 20.0 TT T = 2001 June 21.31511 +/- 0.01294 (m.e.) TT Peri. = 5.49035 +/- 0.00144 Node = 293.91661 +/- 0.00004 (2000.0) Inc. = 28.08151 +/- 0.00005 q = 5.3028336 +/- 0.0000346 AU e = 0.8014079 +/- 0.0000161 a = 26.7021413 +/- 0.0000816 AU n' = 0.00714307 +/- 0.00000003 P = 137.981 +/- 0.0006322 years (+/- 0.23 day) The predicted orbit for the 2138 return is as follows: T = 2138 Nov. 17.71663 TT Epoch = 2138 Nov. 29.0 TT Peri. = 5.96109 e = 0.7959524 Node = 293.52129 (2000.0) a = 26.0290201 AU Inc. = 28.29095 n'= 0.00742194 q = 5.3111598 AU P = 132.797 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2001/ 010713 644 0.2+ 0.6+ 010916 360 0.1- 0.9- 010620 644 0.9- 0.4- 010713 673 0.8- 0.6- 011014 704 1.0- 0.0 010620 644 0.9- 1.0- 010713 673 1.1- 0.4+ 011014 704 0.8- 0.1- 010620 644 1.1- 1.1- 010713 673 0.1- 0.2+ 011014 704 0.6+ 1.1- 010626 644 0.0 0.1+ 010715 046 0.3- 0.5- 011014 704 1.4+ 0.6+ 010626 644 0.2+ 0.1+ 010715 046 0.1- 0.2- 011110 704 0.6+ 0.4+ 010626 644 0.2- 0.1- 010715 046 0.3- 0.5+ 011110 704 0.1- 0.7- 010629 608 0.4+ 0.7- 010715 046 0.7- 0.1- 011110 704 0.9- 0.9- 010629 608 0.7+ 0.7- 010720 673 0.1- 0.2+ 2002/ 010629 608 0.3+ 1.2- 010720 673 0.1+ 0.4+ 020726 644 0.4+ 0.3+ 010630 918 1.3- 1.1+ 010720 673 0.5- 0.0 020726 644 0.4+ 0.7+ 010630 918 0.6- 0.0 010721 204 0.7- 0.3+ 020726 644 0.7+ 0.5+ 010630 918 0.7+ 0.3- 010721 204 0.5+ 0.8+ 020803 644 0.7+ 1.4+ 010630 673 0.5- 0.1+ 010722 360 0.0 0.2- 020803 644 0.2- 0.4+ 010630 673 0.2+ 0.0 010722 360 0.1- 0.2- 020803 644 0.1+ 0.9+ 010630 673 0.4- 0.0 010722 360 0.1- 0.1- 020807 360 0.1+ 0.5- 010630 658 0.5+ 0.3+ 010729 152 0.0 0.4+ 020807 360 0.7- 0.6- 010630 658 1.2+ 0.4+ 010729 152 0.1+ 0.3+ 020814 644 0.2+ 0.3+ 010630 658 1.0+ 0.1+ 010729 152 0.3- 0.0 020814 644 0.4+ 0.2+ 010630 608 0.1+ 1.1- 010811 608 0.1+ 0.0 020814 644 0.2+ 0.0 010630 608 0.3+ 0.7- 010811 608 0.1+ 0.1+ 020822 644 0.6- 0.3- 010630 608 0.2+ 0.9- 010811 608 0.0 0.3+ 020822 644 0.1+ 0.2- 010630 428 0.3- 0.4+ 010814 402 0.3- 0.1+ 020822 644 0.0 0.3+ 010630 428 0.6- 0.2- 010814 402 0.2- 0.2+ 020830 699 0.7- 0.9- 010710 673 (7.5- 7.5+) 010814 402 0.1- 0.1+ 020830 699 0.8- 0.1+ 010710 673 0.4+ 0.4+ 010815 493 0.1+ 0.2+ 020830 699 0.3- 0.0 010710 673 0.2- 0.3+ 010815 493 0.5+ 0.2+ 020830 699 0.1- 1.2- 010712 673 0.9+ 0.6+ 010815 493 0.3+ 0.2+ 021002 360 0.5+ 0.4- 010712 673 0.9+ 0.6+ 010819 704 0.8+ 0.5- 021002 360 0.3- 1.0- 010712 673 0.4+ 0.7+ 010819 704 1.1+ 0.5+ 021128 360 0.0 0.2- 010713 644 0.1+ 0.7+ 010819 704 1.1+ 0.8+ 021128 360 0.1- 0.2+ 010713 644 0.1+ 0.5+ 010916 360 0.6- 0.5- 021128 360 0.0 0.3+ ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2002 Dec. 10