OAA computing section circular NK 1199 86P/Wild 3
The following improved orbital elements, by S. Nakano, are from 89 observations 1980 to 2001, including planetary perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas, Vesta, and non-gravitational effect of style II. The mean residual is +/- 0.96 arc second. See a previous orbit in NK 679. Epoch = 2001 June 20.0 TT T = 2001 June 18.59165 +/- 0.00088 (m.e.) TT Peri. = 179.16116 +/- 0.00030 Node = 72.61306 +/- 0.00012 (2000.0) Inc. = 15.43856 +/- 0.00006 q = 2.3102905 +/- 0.0000032 AU e = 0.3644736 +/- 0.0000009 a = 3.6352392 +/- 0.0000020 AU n' = 0.14220164 +/- 0.00000012 P = 6.931 +/- 0.0000058 years A1 = +0.870 +/- 0.164 A2 = +0.11328 +/- 0.00120 T = 1980 Oct. 5.19249 TT Epoch = 1980 Oct. 8.0 TT Peri. = 179.35960 e = 0.3681227 Node = 72.72460 (2000.0) a = 3.6201376 AU Inc. = 15.46243 n'= 0.14309236 q = 2.2874830 AU P = 6.888 years T = 1987 Sept. 1.06172 TT Epoch = 1987 Sept. 2.0 TT Peri. = 179.59273 e = 0.3674634 Node = 72.66952 (2000.0) a = 3.6233076 AU Inc. = 15.45587 n'= 0.14290462 q = 2.2918747 AU P = 6.897 years T = 1994 July 21.22775 TT Epoch = 1994 July 27.0 TT Peri. = 179.27081 e = 0.3660793 Node = 72.62620 (2000.0) a = 3.6273724 AU Inc. = 15.45302 n'= 0.14266448 q = 2.2994665 AU P = 6.909 years The predicted orbit for the 2008 return is as follows: T = 2008 May 20.00028 TT Epoch = 2008 May 14.0 TT Peri. = 179.15227 e = 0.3659798 Node = 72.58354 (2000.0) a = 3.6294752 AU Inc. = 15.44782 n'= 0.14254052 q = 2.3011607 AU P = 6.915 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1980/ 870201 691 1.9+ 2.1- 940706 691 0.4- 0.9+ 800411 026 (0.6- 4.2+) 870201 691 1.6+ 1.5- 940706 691 0.5- 0.1+ 800411 026 (0.2- 3.7+) 870228 691 2.1+ 0.7- 940710 691 0.2- 0.1+ 800412 026 0.7- 2.4+ 870228 691 2.0+ 0.9- 940710 691 0.2- 0.2+ 800507 026 0.2- 1.6+ 870228 691 1.8+ 0.9- 940710 691 0.8- 0.3+ 800507 026 1.3- 1.2+ 870302 691 1.5+ 0.8- 940713 360 0.1- 0.2- 800509 688 0.7- 1.9- 870302 691 1.5+ 0.6- 940713 360 0.9+ 0.1+ 800509 372 (3.9- 0.1+) 870622 707 (1.9+ 3.5-) 940713 360 0.4+ 0.1+ 800509 372 (4.3- 0.8-) 870622 707 (2.7+ 1.5-) 1997/ 800510 688 0.0 1.7- 870721 691 (3.9+ 1.5-) 971230 568 0.4+ 0.7- 800511 026 0.9+ 1.0- 870722 691 1.9+ 0.7+ 971230 568 0.1+ 0.8- 800512 026 0.2+ 0.6+ 870722 691 2.3+ 0.2+ 2001/ 800514 801 (0.2+ 2.9+) 870722 691 2.1+ 0.2+ 010406 413 0.6+ 0.2+ 800517 801 1.5- 0.6- 1988/ 010406 413 0.3+ 0.1+ 800518 372 (0.5+ 2.7+) 880911 568 0.7+ 0.7- 010406 413 0.5+ 0.3+ 800519 323 1.9- 2.1+ 1994/ 010406 413 0.3- 0.9+ 800520 026 1.1+ 0.1+ 940210 691 1.2- 1.1+ 010417 691 0.5+ 0.2+ 800604 026 1.6- 0.2+ 940210 691 (2.1- 0.9+) 010417 691 0.1+ 0.2+ 800606 801 2.3+ 1.7- 940210 691 0.5- 1.7+ 010417 691 0.3- 0.1+ 800606 381 (0.7- 4.8+) 940210 691 (2.2- 1.7+) 010426 829 0.3+ 0.2- 800609 046 2.2- 1.9- 940210 691 1.3- 1.3+ 010426 829 0.6- 0.7- 800609 046 1.0- 0.5+ 940213 691 (2.8- 1.3+) 010517 867 0.1+ 0.2- 800611 323 0.7- 0.0 940213 691 (1.1- 2.6+) 010517 867 0.0 1.0- 800611 046 (3.4- 2.0-) 940413 360 0.5- 0.8+ 010517 867 0.4+ 0.2- 800611 046 (3.2- 1.0-) 940413 360 0.9- 0.7+ 010518 867 0.1+ 1.2- 800611 026 (0.5- 2.5-) 940501 691 0.7- 0.5+ 010518 867 0.7+ 0.2- 800612 801 (3.0+ 0.3+) 940501 691 0.7- 0.3+ 010518 867 0.9+ 0.1- 800612 046 0.5- 0.3+ 940501 691 0.8- 0.3+ 010521 704 (2.5+ 0.5-) 800612 046 (2.8- 5.0+) 940506 372 (5.3- 2.5+) 010521 704 1.0- 0.0 800614 046 0.2- 0.3+ 940508 360 0.1- 0.2- 010521 704 0.2+ 0.1- 800614 046 (3.3- 0.5+) 940508 360 1.4- 0.1+ 010521 704 (2.2- 0.6+) 800617 323 0.1+ 0.5- 940516 360 1.5- 0.0 010525 402 0.3- 0.2- 800708 323 0.0 1.0+ 940516 360 1.1- 0.4- 010525 402 0.5+ 1.8+ 800710 474 1.1- 2.0- 940601 360 0.1+ 0.6+ 010525 402 1.5- 1.2+ 800710 474 0.8+ 0.9- 940601 360 0.3+ 0.0 010530 170 (5.0- 1.4-) 800807 323 0.4+ 0.2+ 940615 691 0.3- 0.7+ 010530 170 (4.3- 4.5-) 800811 323 0.2+ 0.4+ 940615 691 0.0 0.1- 010617 320 0.2- 0.7- 1987/ 940615 691 0.5- 0.4+ 010617 320 1.0+ 1.3- 870129 691 (3.3+ 0.2-) 940704 360 0.3- 0.4+ 010617 320 0.2+ 0.6- 870129 691 (3.2+ 0.0 ) 940704 360 0.9+ 0.0 010617 320 0.8+ 2.0- 870201 691 1.2+ 2.1- 940706 691 0.3- 0.6+ ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2005 July 4