OAA computing section circular NK 660 14P/Wolf
The following improved orbital elements, by S. Nakano, are from 67 observations 1950-1993. 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. Epoch = 1992 Sept.15.0 TT T = 1992 Aug. 28.13419 +/- 0.00029 (m.e.) TT Peri. = 162.28611 +/- 0.00008 Node = 204.14498 +/- 0.00006 (2000.0) Inc. = 27.47769 +/- 0.00004 q = 2.4277037 +/- 0.0000014 AU e = 0.4055998 +/- 0.0000004 a = 4.0842914 +/- 0.0000009 AU n' = 0.11940678 +/- 0.00000004 P = 8.254 +/- 0.0000026 years T = 1950 Oct. 23.65876 TT Epoch = 1950 Oct. 6.0 TT Peri. = 161.13972 e = 0.3963714 Node = 204.58419 (2000.0) a = 4.1376283 AU Inc. = 27.31081 n'= 0.11710538 q = 2.4975908 AU P = 8.416 years T = 1959 Mar. 21.83756 TT Epoch = 1959 Mar. 13.0 TT Peri. = 161.07227 e = 0.3947519 Node = 204.60948 (2000.0) a = 4.1419485 AU Inc. = 27.29207 n'= 0.11692221 q = 2.5069064 AU P = 8.430 years T = 1967 Aug. 30.11829 TT Epoch = 1967 Aug. 18.0 TT Peri. = 161.24641 e = 0.3949123 Node = 204.50389 (2000.0) a = 4.1416368 AU Inc. = 27.30142 n'= 0.11693541 q = 2.5060535 AU P = 8.429 years T = 1976 Jan. 25.35543 TT Epoch = 1976 Jan. 23.0 TT Peri. = 161.13748 e = 0.3956847 Node = 204.51362 (2000.0) a = 4.1381925 AU Inc. = 27.32636 n'= 0.11708144 q = 2.5007731 AU P = 8.418 years T = 1984 May 31.82703 TT Epoch = 1984 May 20.0 TT Peri. = 162.17114 e = 0.4067527 Node = 204.21798 (2000.0) a = 4.0713305 AU Inc. = 27.50561 n'= 0.11997742 q = 2.4153060 AU P = 8.215 years The predicted orbit for the 2000 return is as follows: T = 2000 Nov. 21.07388 TT Epoch = 2000 Dec. 2.0 TT Peri. = 162.36355 e = 0.4071491 Node = 204.12076 (2000.0) a = 4.0695413 AU Inc. = 27.52266 n'= 0.12005656 q = 2.4126312 AU P = 8.210 years The following residuals in seconds of arc are from the above orbital elements: 19/ 19/ 19/ 500618 672 1.7- 1.0- 581008 689 1.3+ 0.6+ 840906 675 0.9- 0.5+ 500618 672 0.1- 1.0+ 581014 689 0.9+ 0.0 841103 675 0.4- 0.5+ 500619 672 0.8- 0.2+ 581014 689 0.1+ 0.5- 841123 707 1.0- 1.2- 500619 672 1.5- 0.7+ 670930 693 1.0+ 1.2+ 920710 372 0.6+ 0.2- 500720 672 0.7- 0.6+ 671005 371 (0.1+ 2.3-) 920725 372 (7.4- 3.6-) 500720 672 0.9- 0.1+ 671005 371 (2.8+ 1.7-) 920726 372 1.4- 0.9- 500721 672 0.8- 0.5- 671007 371 (2.7- 1.2-) 920726 372 (6.2+ 0.5+) 500722 672 0.6- 0.0 671007 371 (3.5+ 3.7+) 920727 658 0.1- 0.3+ 500816 672 0.7- 0.4- 671008 371 (1.4+ 6.6-) 920727 658 0.1+ 0.6+ 500816 662 0.1- 1.0+ 671104 693 1.4+ 0.6- 920727 658 0.2+ 0.2+ 500816 662 0.3- 0.7+ 671104 693 1.6+ 0.2- 920925 691 0.3- 0.9+ 500817 672 0.7+ 1.1+ 750517 801 1.8- 1.8- 920925 691 0.1+ 0.5+ 500910 672 1.2- 0.5- 750517 691 0.5- 0.2- 920925 691 0.5- 0.7+ 500911 672 0.5+ 0.7+ 750517 691 0.1- 0.1+ 920927 658 0.8+ 0.9- 500912 672 0.4+ 0.1- 750611 801 0.8- 0.0 920927 658 0.8+ 1.0- 501010 672 0.6+ 0.1+ 750808 691 0.6- 0.9- 920927 658 0.2- 1.5- 501102 662 0.7+ 0.2- 750808 691 0.2- 0.9- 921102 360 1.0+ 0.0 501102 662 1.4+ 0.9- 750904 801 0.6- 0.6- 921102 360 1.3+ 0.0 501112 672 (2.8- 0.5+) 750906 801 1.0+ 1.6+ 921202 691 0.4- 0.0 501213 672 1.4- 0.3+ 750909 691 0.2- 0.1- 921202 691 0.2+ 0.1- 501213 672 (2.4- 0.3+) 751007 691 1.7+ 0.4- 921202 691 0.3+ 0.1- 580624 689 0.9+ 0.3- 751105 801 1.0- 1.1+ 930125 691 1.7- 0.4- 580624 689 0.6+ 0.4- 751206 693 1.2+ 0.1- 930125 691 1.3- 0.0 580710 689 0.2+ 0.3+ 751206 693 1.5+ 0.1+ 930125 691 2.1- 0.4- 580710 689 1.1+ 0.4+ 830801 675 1.3- 1.4- 581008 689 0.3+ 0.3- 830803 675 0.8- 0.1+ ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1997 May 4