OAA computing section circular NK 1197 11P/Tempel-Swift-LINEAR
The following improved orbital elements, by S. Nakano, are from 53 observations 1908 to 2002, 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 +/- 1.20 arc seconds. See a previous orbit on IAUC 7779 and MPC 44184. Epoch = 2002 Jan. 6.0 TT T = 2001 Dec. 30.75591 +/- 0.00057 (m.e.) TT Peri. = 163.63427 +/- 0.00038 Node = 240.71036 +/- 0.00032 (2000.0) Inc. = 13.46071 +/- 0.00008 q = 1.5840642 +/- 0.0000036 AU e = 0.5391195 +/- 0.0000009 a = 3.4370389 +/- 0.0000029 AU n' = 0.15467759 +/- 0.00000020 P = 6.372 +/- 0.0000082 years A1 = +0.132 +/- 0.007 A2 = -0.01199 +/- 0.00039 T = 1908 Oct. 5.06896 TT Epoch = 1908 Sept.16.0 TT Peri. = 113.40608 e = 0.6381311 Node = 291.84279 (2000.0) a = 3.1848568 AU Inc. = 5.44901 n'= 0.17340803 q = 1.1525007 AU P = 5.684 years [ T = 1914 July 22.58282 TT Epoch = 1914 July 7.0 TT Peri. = 139.17681 e = 0.6187408 Node = 265.84274 (2000.0) a = 3.2392954 AU Inc. = 7.13256 n'= 0.16905509 q = 1.2350112 AU P = 5.830 years ] [ T = 1920 May 24.35505 TT Epoch = 1920 June 5.0 TT Peri. = 139.32104 e = 0.6184647 Node = 265.75146 (2000.0) a = 3.2406842 AU Inc. = 7.13592 n'= 0.16894643 q = 1.2364354 AU P = 5.834 years ] [ T = 1926 Apr. 28.88002 TT Epoch = 1926 May 5.0 TT Peri. = 154.39039 e = 0.5960737 Node = 250.11991 (2000.0) a = 3.2818740 AU Inc. = 10.51961 n'= 0.16577583 q = 1.3256351 AU P = 5.945 years ] [ T = 1932 Apr. 12.04655 TT Epoch = 1932 Apr. 3.0 TT Peri. = 154.52545 e = 0.5956841 Node = 250.04776 (2000.0) a = 3.2832320 AU Inc. = 10.52240 n'= 0.16567299 q = 1.3274630 AU P = 5.949 years ] [ T = 1938 May 19.77716 TT Epoch = 1938 May 22.0 TT Peri. = 161.96457 e = 0.5584766 Node = 242.18591 (2000.0) a = 3.3692419 AU Inc. = 13.26689 n'= 0.15936971 q = 1.4875990 AU P = 6.184 years ] [ T = 1944 July 30.35359 TT Epoch = 1944 Aug. 18.0 TT Peri. = 162.11541 e = 0.5579469 Node = 242.12193 (2000.0) a = 3.3721115 AU Inc. = 13.26590 n'= 0.15916633 q = 1.4906523 AU P = 6.192 years ] [ T = 1950 Nov. 12.96756 TT Epoch = 1950 Nov. 15.0 TT Peri. = 163.54877 e = 0.5416004 Node = 240.95279 (2000.0) a = 3.4277442 AU Inc. = 13.43216 n'= 0.15530716 q = 1.5712765 AU P = 6.346 years ] [ T = 1957 Mar. 24.79119 TT Epoch = 1957 Mar. 23.0 TT Peri. = 163.71733 e = 0.5406904 Node = 240.88877 (2000.0) a = 3.4334654 AU Inc. = 13.43081 n'= 0.15491913 q = 1.5770236 AU P = 6.362 years ] [ T = 1963 Aug. 7.93831 TT Epoch = 1963 July 30.0 TT Peri. = 163.72672 e = 0.5377945 Node = 240.79896 (2000.0) a = 3.4457413 AU Inc. = 13.42132 n'= 0.15409199 q = 1.5926404 AU P = 6.396 years ] [ T = 1970 Jan. 2.54636 TT Epoch = 1970 Jan. 14.0 TT Peri. = 163.76317 e = 0.5363657 Node = 240.78456 (2000.0) a = 3.4522285 AU Inc. = 13.40661 n'= 0.15365786 q = 1.6005716 AU P = 6.414 years ] [ T = 1976 May 29.52620 TT Epoch = 1976 May 22.0 TT Peri. = 163.69912 e = 0.5368949 Node = 240.78348 (2000.0) a = 3.4505698 AU Inc. = 13.41831 n'= 0.15376867 q = 1.5979764 AU P = 6.410 years ] [ T = 1982 Oct. 25.73615 TT Epoch = 1982 Nov. 7.0 TT Peri. = 163.61059 e = 0.5358483 Node = 240.79137 (2000.0) a = 3.4541907 AU Inc. = 13.40684 n'= 0.15352695 q = 1.6032684 AU P = 6.420 years ] [ T = 1989 Mar. 23.67704 TT Epoch = 1989 Mar. 15.0 TT Peri. = 163.65374 e = 0.5370640 Node = 240.76848 (2000.0) a = 3.4472151 AU Inc. = 13.42988 n'= 0.15399319 q = 1.5958401 AU P = 6.400 years ] [ T = 1995 Aug. 12.15152 TT Epoch = 1995 Aug. 31.0 TT Peri. = 163.52737 e = 0.5377796 Node = 240.76432 (2000.0) a = 3.4441361 AU Inc. = 13.43748 n'= 0.15419973 q = 1.5919499 AU P = 6.392 years ] The predicted orbit for the 2008 return is as follows: T = 2008 May 4.59101 TT Epoch = 2008 May 14.0 TT Peri. = 163.89872 e = 0.5449466 Node = 240.52545 (2000.0) a = 3.4140593 AU Inc. = 13.55340 n'= 0.15624189 q = 1.5535793 AU P = 6.308 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1908/ 010910 704 0.9- 1.0- 011219 704 (0.5- 2.3+) 080930 020 0.3+ 1.4- 011017 704 0.7+ 0.2- 011219 704 0.1- 1.0+ 081001 020 2.6+ 0.1- 011017 704 0.8+ 0.6- 011219 704 0.8- 0.9+ 081003 020 0.3- 1.4- 011017 704 0.4- 1.1+ 011219 734 (2.7+ 2.2-) 081006 020 1.6- 2.8+ 011017 704 0.3- 0.8- 011219 734 (1.6+ 2.7-) 081023 020 0.0 3.2+ 011017 704 0.1+ 0.3+ 011219 704 0.2- 1.0+ 081027 020 2.4- 2.4+ 011207 704 0.3- 1.4- 011219 734 0.2+ 0.7+ 081028 020 0.7- 1.8- 011207 704 0.0 1.7- 011219 734 (3.2+ 0.3+) 081029 020 0.7- 1.0- 011207 704 0.4- 1.8- 011219 734 (2.5+ 2.0+) 081030 020 1.7+ 3.2+ 011207 704 0.4- 0.9- 2002/ 081031 020 (4.5- 2.1+) 011208 704 0.5+ 0.2+ 020104 349 1.2- 1.1+ 081031 020 0.1+ 2.2+ 011208 704 0.5+ 0.1- 020104 349 (1.3+ 2.4+) 081031 008 0.9+ 2.3- 011208 704 0.7+ 1.3+ 020105 360 0.3- 0.1- 081106 020 0.8- 2.9+ 011208 704 0.5+ 0.5+ 020105 360 0.7- 0.3- 081121 020 0.9+ 3.6- 011211 704 0.1- 0.3+ 020105 360 0.3- 0.3- 081126 008 1.8+ 2.6- 011211 704 0.4- 0.9+ 020111 360 0.2- 0.5- 081129 008 (5.8+ 4.6-) 011211 704 1.0+ 0.2+ 020111 360 0.9- 0.2- 081221 754(18.4+ 9.7-) 011211 704 0.8+ 0.4+ 020111 360 0.2- 0.7- 081225 754(16.2+ 8.2-) 011211 704 0.4+ 0.3+ 020207 360 0.7- 0.8- 2001/ 011217 704 1.6+ 0.9+ 020207 360 0.9- 1.1- 010910 704 0.3- 0.9- 011217 704 1.5+ 0.7+ 020207 360 0.6- 0.2- 010910 704 0.5+ 0.8- 011217 704 (5.1+ 2.2+) 010910 704 0.4- 0.6+ 011217 704 2.0+ 0.3+ ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2005 July 4