OAA computing section circular NK 1047 P/1998 QP54 (LONEOS-Tucker)
The following improved orbital elements, by S. Nakano, are from 219 observations 1998 Aug. 2 to 1999 Feb. 14. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.79 arc second. See a previous orbit in MPC 33650. Epoch = 1998 Sept.24.0 TT T = 1998 Oct. 6.40011 +/- 0.00140 (m.e.) TT Peri. = 30.10011 +/- 0.00070 Node = 341.92829 +/- 0.00007 (2000.0) Inc. = 17.74341 +/- 0.00006 q = 1.8818470 +/- 0.0000049 AU e = 0.5519214 +/- 0.0000045 a = 4.1998145 +/- 0.0000105 AU n' = 0.11451409 +/- 0.00000043 P = 8.607 +/- 0.0000322 years The predicted orbit for the 2007 return is as follows: T = 2007 May 12.18358 TT Epoch = 2007 May 20.0 TT Peri. = 30.33300 e = 0.5520203 Node = 341.81087 (2000.0) a = 4.1964309 AU Inc. = 17.71136 n'= 0.11465261 q = 1.8799159 AU P = 8.596 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1998/ 980919 355 0.1- 0.5+ 981019 071 1.6+ 0.8- 980802 699 1.2- 0.6- 980919 355 0.6- 0.7+ 981019 071 1.7+ 1.2- 980802 699 1.4- 1.0- 980919 355 0.9- 0.2+ 981019 071 (2.0+ 1.8-) 980802 699 (2.6- 1.6-) 980919 900 0.3- 1.1+ 981019 071 (2.5+ 2.1-) 980827 699 0.3+ 0.5+ 980919 900 1.1- 0.5+ 981019 071 (2.6+ 1.6-) 980827 699 0.8+ 0.4+ 980919 402 0.4- 1.0+ 981019 071 1.7+ 1.1- 980827 699 1.5+ 0.1- 980919 402 0.4- 1.1+ 981019 071 (2.1+ 1.2-) 980828 704 0.2+ 0.9- 980919 402 0.5- 1.2+ 981019 071 (2.2+ 1.7-) 980828 704 0.4- 0.1- 980919 402 0.6- 1.1+ 981021 372 0.1+ 1.6+ 980828 704 1.4+ 0.3+ 980920 046 0.2- 1.0+ 981022 402 0.3- 1.4+ 980828 704 1.2+ 0.4+ 980920 046 0.2- 1.3+ 981022 402 0.1- 1.4+ 980828 704 0.5+ 0.0 980920 046 0.1- 1.1+ 981022 402 0.0 1.3+ 980828 699 1.5+ 0.1+ 980920 046 0.1- 0.9+ 981022 504 0.3+ 1.3+ 980828 699 0.5- 0.3+ 980920 683 1.0- 1.1- 981022 504 0.3+ 1.1+ 980828 699 0.1+ 0.9- 980920 683 1.1- 1.1- 981023 071 1.0+ 0.3+ 980913 683 0.1- 1.0- 980920 683 1.2- 1.2- 981023 071 1.3+ 0.2+ 980913 683 0.4- 1.5- 980920 372 1.4- 1.3+ 981023 071 1.5+ 0.5+ 980913 683 0.1- 1.0- 980920 897 0.3- 1.4+ 981023 071 1.1+ 0.9+ 980913 683 0.3+ 1.6- 980920 897 0.4+ 0.4+ 981023 071 0.1+ 1.2+ 980913 683 (0.5- 2.1-) 980920 587 0.0 0.2+ 981024 372 0.5- 1.7+ 980913 683 0.2- 1.3- 980920 587 0.7- 0.3+ 981025 867 0.9+ 0.9+ 980913 683 (2.5- 2.6-) 980921 683 (0.0 2.8-) 981025 867 1.0+ 0.3+ 980913 683 0.1- 1.4- 980921 683 (1.7- 3.3-) 981025 867 1.4+ 0.3+ 980913 683 0.1- 1.2- 980921 683 (1.4- 3.3-) 981028 587 1.1+ 0.7+ 980913 683 (0.9- 2.7-) 980921 504 0.8- 0.7- 981028 587 0.8+ 0.7+ 980913 683 0.1+ 1.0- 980921 504 0.0 0.5- 981029 360 0.2- 1.0+ 980913 683 0.5- 1.8- 980921 504 0.8- 0.5+ 981029 360 0.4- 0.8+ 980913 683 (1.1- 2.3-) 980921 504 0.5- 0.0 981030 587 1.1+ 0.2+ 980913 683 (0.2- 2.1-) 980921 504 0.5- 0.3- 981030 587 0.8+ 0.3+ 980913 683 0.5+ 0.9- 980921 504 0.5- 0.3- 981105 402 0.4+ 0.9- 980913 046 1.1+ 0.3- 980923 113 1.7- 0.5- 981105 402 1.0- 0.1+ 980913 046 0.8+ 0.4+ 980923 113 1.0- 0.0 981105 402 0.1+ 0.9- 980913 046 0.2+ 0.7+ 980924 683 (1.1- 3.7-) 981108 372 0.2- 0.5+ 980913 046 1.3+ 0.6- 980924 683 (2.8- 4.6-) 981108 355 0.1+ 0.1- 980913 046 0.4+ 0.6- 980924 683 (1.3- 2.4-) 981108 355 0.5+ 0.2- 980913 046 1.2+ 0.5- 980924 113 0.6- 0.7- 981108 360 0.3- 0.2- 980913 557 0.7+ 0.5- 980924 113 0.4- 1.1- 981108 360 0.9- 0.1- 980913 557 0.6+ 0.6- 980925 113 1.3+ 1.8+ 981108 355 0.5+ 0.4- 980913 557 0.8+ 0.3- 980926 046 0.3- 0.3+ 981110 372 0.8- 0.5+ 980914 683 0.2- 1.6- 980926 046 0.4- 0.2- 981111 046 0.3- 0.2- 980914 703 (2.8+ 1.3-) 980926 046 0.3- 1.2+ 981111 046 0.8- 0.2+ 980914 683 (0.4- 2.1-) 981001 372 0.5- 0.5+ 981111 046 0.7- 0.0 980914 703 0.1+ 1.3- 981002 402 0.8- 0.2+ 981112 900 0.4+ 0.9+ 980914 587 0.9+ 1.1- 981002 402 0.4- 0.2+ 981112 900 0.8- 0.8- 980914 587 0.6+ 0.3+ 981002 402 0.7- 0.3+ 981112 360 0.8- 0.3+ 980915 758 (3.5+ 1.6-) 981002 897 0.7- 0.1+ 981112 360 0.5- 0.1+ 980915 758 0.5+ 0.8+ 981002 897 0.7- 1.0+ 981112 897 0.3+ 0.2- 980915 758 0.3+ 0.7+ 981002 372 0.7- 0.4+ 981112 897 0.7+ 0.6+ 980915 703 0.6+ 0.6+ 981004 758 (0.5+ 2.0+) 981112 897 1.1+ 0.5+ 980915 703 0.7+ 0.9+ 981004 758 (2.3- 2.3+) 981113 118 (2.2- 2.5-) 980915 691 (4.1- 4.8-) 981005 758 (2.0- 0.7-) 981119 402 0.6+ 0.2+ 980915 691 (2.9- 3.5-) 981005 758 0.9- 0.6- 981119 402 0.8+ 0.1+ 980916 693 0.0 1.7+ 981005 758 (0.1+ 3.4+) 981119 402 0.4+ 0.2+ 980916 693 0.0 1.7+ 981008 372 0.3- 0.3- 981122 693 0.8- 0.3+ 980916 693 0.1+ 1.7+ 981008 900 0.3+ 0.8- 981122 693 0.2- 0.6+ 980916 411 0.2- 0.4+ 981008 900 0.1- 0.3- 981122 693 0.1- 0.6+ 980916 411 0.2- 0.6+ 981009 372 0.8+ 0.3+ 981123 372 0.8- 0.5- 980916 355 0.6- 1.1+ 981009 372 1.6- 0.4- Y 981123 360 0.0 0.0 980916 897 0.0 1.1+ 981009 355 0.4+ 1.5- 981123 360 0.1- 0.0 980916 355 0.8- 0.5+ 981009 355 0.9+ 0.8- 981125 046 0.1- 0.1+ 980916 355 0.0 0.9+ 981009 046 0.1+ 0.0 981125 046 0.5- 0.6+ 980916 352 0.7- 0.5- 981009 046 0.5+ 0.6- 981125 046 0.3- 0.4+ 980916 352 0.1+ 0.2+ 981009 046 0.1- 0.1- 981125 046 0.0 0.3+ 980916 897 0.2+ 0.6+ 981009 046 0.1+ 0.6- 981209 372 0.6- 0.1+ 980916 352 0.4+ 0.6+ 981010 683 0.6+ 1.6- 981209 118 0.0 0.2- 980916 360 0.3+ 0.7+ 981010 683 0.6+ 1.8- 981209 118 0.5- 0.1- 980916 360 0.4+ 1.1+ 981010 683 (0.9+ 2.4-) 981209 118 0.5- 0.5- 980916 360 0.3+ 1.2+ 981011 683 (0.7+ 3.4-) 981214 691 0.9- 0.8- 980916 900 0.5+ 0.7+ 981011 683 (1.1+ 2.9-) 981214 691 1.9- 1.1- 980916 900 0.2- 0.5+ 981011 683 (1.1+ 3.2-) 981214 691 1.6- 1.0- 980917 360 0.5+ 0.5+ 981014 360 1.2- 0.7- 981217 402 0.5- 0.7- 980917 360 0.1+ 0.4+ 981014 360 0.9- 0.6- 981217 402 1.6+ 0.8- 980917 360 0.3+ 0.6+ 981014 360 0.8- 0.7- 981217 402 0.0 0.4- 980917 504 0.2- 1.0- 981016 118 0.1+ 1.3- 981217 360 1.0- 0.8- 980917 504 0.5+ 1.1- 981016 118 0.2- 0.8- 981217 360 0.5- 0.5- 980917 504 0.2- 0.7- 981016 504 (0.6+ 2.0-) 1999/ 980918 557 0.5- 0.8+ 981016 504 0.3+ 1.6- 990113 360 0.1- 0.2- 980918 557 0.2- 0.7+ 981016 504 0.7+ 1.7- 990113 360 0.4- 0.8- 980918 557 0.3- 0.8+ 981016 504 (0.5+ 2.3-) 990113 360 0.2+ 0.6- 980919 683 0.6- 0.5- 981018 704 (2.4+ 0.8-) 990121 360 0.1- 0.0 980919 683 1.0- 1.2- 981018 704 (2.6+ 0.9-) 990121 360 1.4- 0.5- 980919 683 1.2- 1.5- 981018 704 1.7+ 1.1- 990121 360 0.6+ 0.2- 980919 699 (2.0+ 0.5+) 981018 704 0.3- 0.3- 990214 693 1.8+ 0.7+ 980919 699 0.8- 1.4- 981018 372 0.1+ 0.8+ 990214 693 1.2+ 0.9+ 980919 699 (3.0- 0.8-) 981018 355 0.6+ 1.1- 990214 693 0.5+ 1.0+ 980919 886 0.5+ 1.1- 981018 355 1.2+ 0.4- 980919 886 (0.2- 2.6+) 981018 355 0.4+ 0.9- ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2004 Apr. 6