OAA computing section circular NK 1201 148P/Anderson-LINEAR
The following improved orbital elements, by S. Nakano, are from 68 observations 1963 to 2001. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.91 arc second. See a previous orbit on MPC 41899. Epoch = 2001 May 11.0 TT T = 2001 May 1.95812 +/- 0.00123 (m.e.) TT Peri. = 6.71973 +/- 0.00112 Node = 89.80190 +/- 0.00120 (2000.0) Inc. = 3.68235 +/- 0.00004 q = 1.6936386 +/- 0.0000093 AU e = 0.5394789 +/- 0.0000025 a = 3.6776569 +/- 0.0000078 AU n' = 0.13974853 +/- 0.00000044 P = 7.053 +/- 0.0000223 years T = 1963 Oct. 28.51689 TT Epoch = 1963 Oct. 18.0 TT Peri. = 352.46508 e = 0.4974573 Node = 98.12021 (2000.0) a = 3.9503266 AU Inc. = 4.50782 n'= 0.12553204 q = 1.9852079 AU P = 7.851 years [ T = 1971 Sept.13.13114 TT Epoch = 1971 Sept. 6.0 TT Peri. = 352.54626 e = 0.4962319 Node = 98.08568 (2000.0) a = 3.9621705 AU Inc. = 4.50371 n'= 0.12496959 q = 1.9960152 AU P = 7.887 years ] [ T = 1979 July 25.55465 TT Epoch = 1979 July 26.0 TT Peri. = 352.58433 e = 0.4977738 Node = 98.07192 (2000.0) a = 3.9481387 AU Inc. = 4.50934 n'= 0.12563640 q = 1.9828588 AU P = 7.845 years ] [ T = 1987 Apr. 17.05797 TT Epoch = 1987 May 5.0 TT Peri. = 6.45126 e = 0.5429013 Node = 89.85065 (2000.0) a = 3.6571283 AU Inc. = 3.68989 n'= 0.14092686 q = 1.6716686 AU P = 6.994 years ] T = 1994 Apr. 21.61512 TT Epoch = 1994 May 8.0 TT Peri. = 6.61271 e = 0.5418266 Node = 89.80146 (2000.0) a = 3.6623018 AU Inc. = 3.68555 n'= 0.14062835 q = 1.6779694 AU P = 7.009 years The predicted orbit for the 2008 return is as follows: T = 2008 May 22.77319 TT Epoch = 2008 May 14.0 TT Peri. = 6.69263 e = 0.5379274 Node = 89.80072 (2000.0) a = 3.6848121 AU Inc. = 3.67844 n'= 0.13934168 q = 1.7026509 AU P = 7.073 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1963/ 001025 704 1.2- 0.0 001222 699 1.1+ 0.5+ 631122 675 0.4+ 1.2+ 001025 704 0.7+ 1.0+ 001222 699 0.9+ 0.1+ 631123 675 0.5+ 0.1+ 001025 704 0.9+ 0.9+ 001222 699 1.3+ 0.8+ 631124 675 0.2- 0.7+ 001025 704 0.6- 0.4- 001222 360 0.6+ 0.4- 631125 675 0.0 1.9+ 001025 704 0.6- 0.2+ 001222 360 0.8+ 0.6- 1993/ 001025 704 0.1+ 0.6+ 001223 704 0.7+ 0.1- 931107 260 1.9- 0.3- 001025 704 0.3+ 0.9- 001223 704 1.7+ 0.2+ 931107 260 0.4- 0.4+ 001102 704 0.0 0.6+ 001223 704 0.1+ 0.0 2000/ 001102 704 0.0 1.3+ 001223 704 0.0 0.1+ 000924 704 0.3+ 0.3+ 001102 704 0.1- 0.3+ 001223 704 1.6+ 1.2+ 000924 704 0.7- 0.5- 001118 699 1.6+ 0.5+ 2001/ 000924 704 1.9- 1.4- 001118 699 1.5+ 2.0+ 010120 704 0.8+ 0.9- 000926 699 0.7- 0.4- 001118 699 0.7+ 1.0+ 010120 704 0.2+ 0.8- 000926 699 1.4- 0.0 001118 699 0.3- 0.0 010120 704 1.5+ 1.5- 000926 699 1.8- 0.3- 001120 071 0.2+ 0.2- 010120 704 0.0 1.7- 000926 699 1.8- 0.0 001120 071 1.7+ 0.2+ 010120 704 0.1- 1.6- 001001 699 0.8- 0.2+ 001120 071 0.3- 0.6- 010121 704 0.3+ 0.9- 001001 699 1.4- 1.1+ 001120 071 0.7- 0.5- 010121 704 1.2+ 0.2- 001001 699 1.5- 0.4+ 001120 071 0.9+ 1.0- 010121 704 0.6+ 0.5- 001001 699 1.4- 0.8+ 001122 071 0.4+ 0.8- 010121 699 1.2+ 0.3+ 001002 704 0.3- 0.2- 001122 071 0.6- 1.8- 010121 699 (2.5+ 0.5+) 001002 704 (2.2- 0.2-) 001122 071 0.4- 0.9- 010121 699 1.6+ 1.1+ 001002 704 0.9- 0.6- 001124 693 0.3+ 0.5- 010121 704 1.1+ 0.6- 001002 704 1.6- 0.0 001124 693 0.2+ 0.4- 010121 699 1.5+ 0.6+ 001025 704 0.9- 0.5+ 001222 699 1.8+ 0.6+ ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2005 July 4