OAA computing section circular NK 1304 73P/Schwassmann-Wachmann 3
The following improved orbital elements, by S. Nakano, are from 83 observations 1930 to 1979, 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 +/- 1.35 arc seconds. See the previous NKs. Epoch = 1979 Sept. 4.0 TT T = 1979 Sept. 2.78003 +/- 0.00224 (m.e.) TT Peri. = 198.77043 +/- 0.00071 Node = 69.95411 +/- 0.00037 (2000.0) Inc. = 11.40885 +/- 0.00017 q = 0.9407262 +/- 0.0000015 AU e = 0.6929091 +/- 0.0000004 a = 3.0633474 +/- 0.0000020 AU n' = 0.18382717 +/- 0.00000018 P = 5.362 +/- 0.0000053 years A1 = +0.594 +/- 0.008 A2 = +0.03905 +/- 0.00010 A3 = -0.26187 +/- 0.00858 T = 1930 June 14.19772 TT Epoch = 1930 July 3.0 TT Peri. = 192.34938 e = 0.6717636 Node = 77.72659 (2000.0) a = 3.0813829 AU Inc. = 17.39290 n'= 0.18221560 q = 1.0114220 AU P = 5.409 years [ T = 1935 Nov. 8.01619 TT Epoch = 1935 Nov. 14.0 TT Peri. = 192.29572 e = 0.6721064 Node = 77.73782 (2000.0) a = 3.0789674 AU Inc. = 17.40395 n'= 0.18243008 q = 1.0095738 AU P = 5.403 years ] [ T = 1941 Apr. 6.05268 TT Epoch = 1941 Mar. 27.0 TT Peri. = 192.32385 e = 0.6710417 Node = 77.70429 (2000.0) a = 3.0839282 AU Inc. = 17.37627 n'= 0.18199006 q = 1.0144839 AU P = 5.416 years ] [ T = 1946 Sept. 7.97175 TT Epoch = 1946 Sept.17.0 TT Peri. = 192.39237 e = 0.6694697 Node = 77.67991 (2000.0) a = 3.0901541 AU Inc. = 17.33564 n'= 0.18144034 q = 1.0213894 AU P = 5.432 years ] [ T = 1952 Feb. 15.82302 TT Epoch = 1952 Jan. 29.0 TT Peri. = 192.46509 e = 0.6688194 Node = 77.63229 (2000.0) a = 3.0925198 AU Inc. = 17.31651 n'= 0.18123219 q = 1.0241827 AU P = 5.438 years ] [ T = 1957 Sept.22.71727 TT Epoch = 1957 Oct. 9.0 TT Peri. = 194.14525 e = 0.6516075 Node = 77.15805 (2000.0) a = 3.1666007 AU Inc. = 17.01235 n'= 0.17490979 q = 1.1032201 AU P = 5.635 years ] [ T = 1963 May 15.43426 TT Epoch = 1963 May 11.0 TT Peri. = 194.25079 e = 0.6515084 Node = 77.11005 (2000.0) a = 3.1665798 AU Inc. = 17.00432 n'= 0.17491152 q = 1.1035264 AU P = 5.635 years ] [ T = 1968 Oct. 23.80343 TT Epoch = 1968 Oct. 31.0 TT Peri. = 197.78739 e = 0.6849896 Node = 70.61264 (2000.0) a = 3.0944209 AU Inc. = 11.51349 n'= 0.18106520 q = 0.9747746 AU P = 5.443 years ] [ T = 1974 Apr. 5.11013 TT Epoch = 1974 Apr. 23.0 TT Peri. = 197.87207 e = 0.6858154 Node = 70.57754 (2000.0) a = 3.0920990 AU Inc. = 11.51655 n'= 0.18126919 q = 0.9714899 AU P = 5.437 years ] The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1930/ 300524 754 1.2+ 0.2+ 790821 323 0.2+ 1.4+ 300502 029 0.6- 2.1- 300524 546 2.4- 2.5- 790822 413 2.4+ 0.8+ 300502 024 0.2- 0.2+ 300527 536 0.9+ 2.9- 790822 323 0.2- 0.4+ 300502 029 0.9+ 0.5- 300528 007 (3.9+ 1.4-) 790828 323 0.1- 0.5- 300502 536 1.5+ 2.7+ 300528 007 (3.7+ 0.7-) 790831 323 0.1- 0.1- 300502 546 0.4- 0.8- 300529 007 3.1+ 1.7+ 790903 323 2.0+ 0.2+ 300503 035 0.6+ 0.5- 300531 754 2.4+ 1.3- 790903 323 1.4- 1.0+ 300503 035 1.7+ 1.6- 300602 754 (4.2+ 3.8-) 790904 323 1.0+ 0.5+ 300503 536 0.2- 0.1+ 300602 662 (3.2+ 5.1-) 790904 323 1.3+ 0.0 300503 008 0.6+ 0.8- 300603 078 (6.5+ 5.1-) 790909 415 2.7+ 3.1+ 300504 027 1.4+ 2.0+ 300610 078 1.1+ 1.3- 790911 323 1.1- 0.7+ 300504 536 1.6- 0.2+ 300611 078 2.6+ 1.0- 790911 323 0.3- 1.6+ 300505 754 3.1+ 0.5- 300615 078 (6.5+ 0.6-) 790914 415 0.7+ 1.3+ 300505 546 1.4+ 0.6- 300627 078 (3.9+ 0.1-) 790914 323 0.6- 1.5+ 300507 094 0.8- 0.2- 300630 078 0.0 1.1+ 790916 323 1.6+ 0.7+ 300509 754 1.3+ 0.2+ 300703 078 1.1+ 0.8+ 790917 323 1.2- 0.2- 300509 536 0.3- 1.3- 300706 078 1.2- 1.2+ 790917 323 1.3- 0.2+ 300509 536 0.5- 0.6- 300710 078 0.4- 0.3- 790918 415 2.3+ 0.8+ 300511 020 0.1- 2.0- 300715 078 0.3+ 0.8- 790918 323 0.0 1.3- 300512 008 0.6- 0.0 300719 078 2.3- 0.4+ 790918 323 0.0 0.0 300514 546 2.3+ 2.5+ 300723 078 2.3- 1.6- 790925 323 0.0 1.5+ 300515 024 0.5+ 1.0+ 300727 078 1.7- 1.0+ 790927 323 1.8+ 1.9+ 300516 007 1.7+ 1.2- 300804 078 (4.8- 0.3+) 790927 323 1.5- 0.9- 300516 536 0.2+ 1.4+ 300808 078 (8.9- 1.5-) 790928 323 (9.0+ 2.5-) 300517 007 0.3- 1.6+ 300824 078 1.2- 1.0- 791002 323 0.1+ 1.2+ 300517 007 1.0- 1.3+ 1979/ 791012 323 (7.3+ 2.4+) 300518 007 2.4- 0.6+ 790813 323 (5.2+ 0.4+) 791012 323 0.6- 0.7+ 300521 754 0.6- 2.1+ 790815 323 1.5+ 0.7- 791015 323 1.8- 0.7+ 300522 536 1.5- 1.3- 790815 323 0.5+ 0.3+ 791017 323 (7.0+ 2.5-) 300522 662 1.7- 2.5+ 790818 474 3.4+ 0.2- 791017 323 (6.0+ 3.1-) 300522 024 0.4+ 0.8+ 790819 323 0.3+ 0.6- 791024 323 1.8+ 0.4+ 300523 754 1.2- 2.8+ 790819 323 0.2+ 0.5- 791108 323 2.7+ 2.8- 300523 536 0.6- 1.5+ 790821 323 0.5+ 0.2+ 791114 323 1.3+ 1.6- ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2005 Apr. 5