OAA computing section circular NK 1611 115P/Maury
The following improved orbital elements, by S. Nakano, are from 93 observations 1985 to 2003. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.82 arc second. The comet has passed 0.52 AU from Jupiter on 1992 Jan. 8 UT. See the previous orbits in NK 701 and HICQ 2003. Epoch = 2003 Jan. 1.0 TT T = 2002 Dec. 23.84930 +/- 0.00023 (m.e.) TT Peri. = 119.87614 +/- 0.00010 Node = 176.75582 +/- 0.00009 (2000.0) Inc. = 11.68269 +/- 0.00004 q = 2.0416698 +/- 0.0000007 AU e = 0.5208002 +/- 0.0000002 a = 4.2605812 +/- 0.0000005 AU n' = 0.11207295 +/- 0.00000002 P = 8.794 +/- 0.0000014 years T = 1985 June 8.15688 TT Epoch = 1985 June 24.0 TT Peri. = 113.95153 e = 0.5295010 Node = 183.81021 (2000.0) a = 4.2741051 AU Inc. = 9.40511 n'= 0.11154145 q = 2.0109620 AU P = 8.836 years T = 1994 Mar. 18.72115 TT Epoch = 1994 Mar. 29.0 TT Peri. = 119.82826 e = 0.5223578 Node = 176.83137 (2000.0) a = 4.2423109 AU Inc. = 11.69453 n'= 0.11279772 q = 2.0263066 AU P = 8.738 years The predicted orbit for the 2011 return is as follows: T = 2011 Oct. 6.97798 TT Epoch = 2011 Oct. 6.0 TT Peri. = 120.06662 e = 0.5209627 Node = 176.60283 (2000.0) a = 4.2482436 AU Inc. = 11.70625 n'= 0.11256152 q = 2.0350674 AU P = 8.756 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1985/ 851207 691 0.2+ 0.1+ 941002 360 0.7+ 0.5+ 850816 675 (3.1- 1.8-) 851207 691 0.5+ 0.6- 941002 360 1.1+ 0.1+ 850817 675 2.3- 1.5- 1986/ 941025 360 0.9+ 0.6- 850817 675 0.2+ 2.1+ 860107 691 (3.0+ 1.1+) 941025 360 0.6+ 0.5- 850820 675 0.3+ 2.1+ 860107 691 (3.5+ 0.4-) 1997/ 850820 675 (2.9- 0.4-) 1994/ 971230 568 (3.4- 0.3+) 850823 675 2.3- 1.1- 940503 691 0.7- 0.9- 2002/ 850823 675 0.7- 2.2+ 940503 691 0.0 0.9- 020512 360 0.7- 0.2- 850907 675 (1.3+ 3.7+) 940503 691 0.5- 0.6- 020512 360 0.1+ 0.2+ 850907 675 0.4+ 0.5+ 940503 691 0.8+ 0.8- 020512 360 0.7- 0.1- 850908 675 0.1+ 0.5- 940504 691 0.7+ 0.6- 020514 224 0.9+ 0.6+ 850908 675 0.1+ 0.5- 940504 691 0.4+ 0.4- 020514 224 0.4+ 1.5+ 850912 801 1.3- 1.2- 940504 691 0.5+ 0.4- 020514 224 1.6+ 0.3- 850912 801 0.4- 0.2+ 940519 360 1.6- 0.6- 020519 360 0.3- 0.1- 850913 801 0.9+ 1.4+ 940519 360 1.2- 1.0- 020519 360 0.5+ 0.3+ 850913 675 (0.4- 3.0-) 940612 691 0.1+ 0.5- 020519 360 0.7- 0.5+ 850913 675 0.4- 0.8+ 940612 691 0.4+ 0.6- 020605 360 0.1+ 0.3+ 850914 293 (6.8+ 3.7+) 940612 691 0.6+ 0.4- 020605 360 0.2+ 0.4+ 850914 688 1.8+ 0.1- 940707 360 0.2- 0.4- 2003/ 850914 293 (3.0+ 3.2+) 940707 360 0.4+ 0.2- 030920 699 1.3- 0.6+ 850914 688 1.2+ 0.8- 940709 691 0.0 0.2- 030920 699 0.5- 0.5+ 850915 801 0.9- 2.1+ 940709 691 0.9- 0.1+ 030920 699 0.2- 1.3+ 850916 707 1.3- 0.2+ 940709 691 0.2- 0.0 030920 699 (2.1- 1.6+) 850917 801 0.1- 0.8+ 940803 360 0.7- 0.3- 030928 704 1.0+ 1.1+ 850918 801 1.6- 0.7+ 940803 360 1.3- 0.2- 030928 704 0.8- 0.2+ 850920 691 0.8+ 0.9- 940817 360 0.1+ 0.1+ 030928 704 (0.6+ 2.0-) 850920 691 0.5+ 0.0 940817 360 0.0 0.1+ 030928 704 0.4+ 1.4- 850920 691 0.7+ 1.0- 940902 658 0.6- 0.2+ 031002 360 0.1+ 0.1+ 850921 691 0.1- 1.1- 940902 658 0.5- 0.1- 031002 360 0.2+ 0.0 850921 691 0.0 1.2- 940902 658 0.0 0.2+ 031007 204 0.8- 0.6+ 851003 675 0.2+ 0.2- 940902 658 0.7- 0.2+ 031020 691 0.2+ 0.7+ 851003 675 0.2+ 0.0 940907 691 0.3- 1.0- 031020 691 0.1- 0.7+ 851017 801 2.3+ 0.8+ 940908 360 0.3+ 0.1- 031020 691 0.3+ 0.5+ 851019 691 1.0+ 1.2- 940908 360 0.3+ 0.5- 031023 360 0.6- 0.6+ 851019 691 0.7+ 1.6+ 940930 897 0.2+ 1.2- 031023 360 0.1+ 0.7+ 851117 691 0.8+ 1.7+ 940930 897 0.8+ 1.8- 031023 360 0.5- 0.5+ 851117 691 0.1+ 0.6+ 940930 897 1.6+ 1.1+ 031025 204 (0.7- 3.2+) ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2008 May 6