OAA computing section circular NK 598R 114P/Wiseman-Skiff
The following improved orbital elements, by S. Nakano, are from 48 observations 1986-1993. Perturbations by Mercury to Neptune and five minor planets, Ceres, Pallas, Vesta, Iris and Bamberga, were taken into account. The mean residual is +/- 1.14 arc seconds. Epoch = 1993 June 22.0 TT T = 1993 June 4.31738 +/- 0.00198 (m.e.) TT Peri. = 171.91010 +/- 0.00077 Node = 271.65645 +/- 0.00068 (2000.0) Inc. = 18.18556 +/- 0.00027 q = 1.5092254 +/- 0.0000042 AU e = 0.5678063 +/- 0.0000012 a = 3.4920116 +/- 0.0000013 AU n' = 0.15103951 +/- 0.00000008 P = 6.525 +/- 0.0000037 years T = 1986 Nov. 22.76433 TT Epoch = 1986 Nov. 26.0 TT Peri. = 171.75179 e = 0.5686266 Node = 271.72151 (2000.0) a = 3.4891070 AU Inc. = 18.19747 n'= 0.15122815 q = 1.5051080 AU P = 6.517 years The predicted orbit for the 2000 return is as follows: T = 2000 Jan. 11.76802 TT Epoch = 2000 Jan. 17.0 TT Peri. = 172.82616 e = 0.5564817 Node = 271.06937 (2000.0) a = 3.5387358 AU Inc. = 18.29102 n'= 0.14805799 q = 1.5694942 AU P = 6.657 years The following residuals in seconds of arc are from the above orbital elements: 861228 688 1.4+ 2.2+ 870127 801 0.2- 0.8- 870501 691 0.5+ 1.1+ 861228 688 0.2+ 2.0+ 870127 323 0.0 0.6- 870501 691 0.1- 1.6+ 870101 892 (4.3- 1.1+) 870128 372 1.7- 0.6+ 870501 691 0.2+ 0.1+ 870109 413 (2.3+ 6.3+) 870130 897 (5.0- 1.7-) 870502 691 0.1+ 1.0+ 870109 413 (1.4+ 4.7+) 870130 897 0.7- 1.8- 870502 691 1.2- 2.4+ 870119 688 (3.0- 1.1-) 870131 413 1.3- 2.5- 870502 691 0.3- 2.0+ 870119 688 0.4+ 2.5- 870131 413 0.9- 0.9- 870523 691 0.7- 0.8- 870120 892 1.8- 0.2- 870131 897 (2.8- 2.3-) 870523 691 0.7+ 1.1- 870120 892 (0.8- 5.6-) 870201 688 0.6- 1.5- 870525 691 0.5- 1.3- 870120 372 0.1+ 1.8+ 870201 688 0.6- 1.5- 870525 691 0.2+ 1.5- 870121 690 0.3- 0.3- 870201 691 0.5+ 0.2+ 930202 696 1.5+ 0.2- 870121 688 (2.1- 3.5-) 870202 323 1.3+ 0.4- 930202 696 1.6- 0.8- 870121 688 1.0- 1.8- 870203 323 1.3+ 1.7+ 930202 696 0.8+ 2.2+ 870121 399 1.3+ 0.5- 870204 323 1.4+ 1.4+ 931210 691 0.5- 0.1- 870122 688 (2.9+ 0.7-) 870205 323 0.7- 0.1- 931216 691 0.9- 0.7- 870122 688 (0.1- 3.7-) 870308 688 0.5+ 0.2- 931216 691 1.3+ 0.3- 870122 892 (4.3+ 2.8-) 870308 688 0.8+ 0.3- 931216 691 1.3- 0.2- 870124 690 0.8- 0.5- 870327 691 1.9+ 0.1+ 931216 691 1.4- 1.3+ 870124 372 0.3+ 1.9+ 870327 691 0.5+ 0.3+ 931216 691 1.2+ 0.4+ 870125 372 0.4+ 1.5+ 870327 691 1.5+ 1.2+ ( ) -------- Rejected Obs.
Director, Computing Section Computed date Syuichi Nakano 1994 Jan. 13