Nakano Note (Nakano wa Kangaeru noda) NK 1813 54P/de Vico-Swift-NEAT
The following improved orbital elements, by S. Nakano, are from 75 observations 1965 to 2009, 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 +/- 0.67 arc second. The delta-T correction for NK 962 is +0.084 day. Also see an orbit in NK 569R. Epoch = 2009 Nov. 25.0 TT T = 2009 Nov. 28.49747 +/- 0.00487 (m.e.) TT Peri. = 1.90872 +/- 0.00141 Node = 358.85293 +/- 0.00020 (2000.0) Inc. = 6.06835 +/- 0.00003 q = 2.1719934 +/- 0.0000070 AU e = 0.4267009 +/- 0.0000014 a = 3.7885865 +/- 0.0000040 AU n' = 0.13365594 +/- 0.00000021 P = 7.374 +/- 0.0000118 years A1 = +0.750 +/- 0.137 A2 = +0.06954 +/- 0.00142 T = 1965 Aug. 23.25257 TT Epoch = 1965 Aug. 28.0 TT Peri. = 325.41366 e = 0.5244162 Node = 25.06612 (2000.0) a = 3.4153972 AU Inc. = 3.61228 n'= 0.15615009 q = 1.6243075 AU P = 6.312 years [ T = 1973 Feb. 13.64257 TT Epoch = 1973 Feb. 7.0 TT Peri. = 1.78484 e = 0.4253999 Node = 359.33271 (2000.0) a = 3.7897940 AU Inc. = 6.08904 n'= 0.13359207 q = 2.1776162 AU P = 7.378 years ] [ T = 1980 July 9.07491 TT Epoch = 1980 July 20.0 TT Peri. = 1.87013 e = 0.4242037 Node = 359.28563 (2000.0) a = 3.8010100 AU Inc. = 6.08066 n'= 0.13300120 q = 2.1886073 AU P = 7.411 years ] [ T = 1987 Nov. 29.72377 TT Epoch = 1987 Nov. 21.0 TT Peri. = 1.82064 e = 0.4256003 Node = 359.26918 (2000.0) a = 3.7938111 AU Inc. = 6.08474 n'= 0.13337994 q = 2.1791639 AU P = 7.389 years ] [ T = 1995 Apr. 2.87955 TT Epoch = 1995 Mar. 24.0 TT Peri. = 1.84080 e = 0.4308140 Node = 359.05017 (2000.0) a = 3.7676511 AU Inc. = 6.08834 n'= 0.13477150 q = 2.1444943 AU P = 7.313 years ] T = 2002 July 30.92397 TT Epoch = 2002 July 25.0 TT Peri. = 2.04805 e = 0.4307091 Node = 358.96496 (2000.0) a = 3.7677245 AU Inc. = 6.08493 n'= 0.13476756 q = 2.1449312 AU P = 7.313 years The predicted orbit for the 2017 return is as follows: T = 2017 Apr. 15.43384 TT Epoch = 2017 Mar. 28.0 TT Peri. = 1.85478 e = 0.4245662 Node = 358.85327 (2000.0) a = 3.7967387 AU Inc. = 6.05718 n'= 0.13322570 q = 2.1847719 AU P = 7.398 years The comet has passed 0.16 AU on 1968 Oct. 16 and will pass 0.20 AU on 2028 Aug. 26 UT from Jupiter. Orbit will be changed as follows: T = 2031 Dec. 1.99125 TT Epoch = 2031 Nov. 30.0 TT Peri. = 164.38256 e = 0.4821652 Node = 196.89962 (2000.0) a = 3.5791791 AU Inc. = 4.79163 n'= 0.14555560 q = 1.8534234 AU P = 6.771 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1965/ 021012 658 0.3+ 0.4+ 021107 735 0.6- 0.6+ 650804 689 1.5+ 0.1+ 021012 926 0.0 0.1- 021107 735 1.7+ 0.2- 650804 693 0.8- 0.3- 021012 926 0.5- 0.6- 021107 735 1.5+ 1.2+ 650804 689 0.2+ 0.2+ 021012 J95 (2.0+ 0.2-) 021112 704 0.4- 1.0+ 650806 689 0.4+ 0.6- 021012 J95 0.1+ 0.1+ 021112 704 0.0 1.1- 650806 689 0.4- 0.6- 021012 J95 0.4+ 0.7- 021112 704 (2.0+ 0.8+) 650825 689 0.9- 0.1+ 021013 170 1.0- 1.4- 021112 704 0.4- 1.0- 650825 689 1.2- 0.3+ 021013 170 1.6- 0.6- 021226 H43 (2.9+ 0.2-) 650902 689 0.4+ 0.2- 021013 349 1.1+ 0.5- 021227 H43 (6.4+ 2.9+) 650902 689 0.3+ 0.2- 021013 349 0.6+ 0.2- 021227 H43 (6.1- 1.3+) 650925 689 1.0+ 0.1- 021013 372 0.8- 0.6+ 021227 360 0.2+ 0.6+ 650925 689 1.1+ 0.2- 021013 349 (2.2- 0.3+) 021227 360 (1.4+ 2.9+) 651015 689 0.6- 0.2+ 021013 372 1.1+ 0.0 021227 360 0.1+ 1.8+ 651015 689 0.5- 0.2+ 021014 360 0.8+ 0.3- 021228 H43 1.2- 1.4- 2002/ 021014 360 0.5+ 0.2+ 021228 H43 (3.9- 4.6+) 021004 704 0.9+ 0.4+ 021014 360 0.3- 0.4- 2003/ 021004 704 0.4- 0.4+ 021015 372 0.4- 1.4+ 030103 H43 (2.6- 2.7+) 021004 704 0.6+ 0.0 021025 213 (1.5- 3.8+) 030103 H43 (3.9- 0.9+) 021009 704 (2.6- 1.2+) 021025 213 (1.7+ 2.2-) 030124 A03 (4.4- 2.4+) 021009 704 (1.4- 2.5+) 021025 213 0.6- 1.3- 030124 A03 (9.1- 2.4-) 021009 704 0.6+ 0.2- 021027 170 0.5+ 0.4- 030205 H43 (4.3- 1.4-) 021009 704 0.0 1.2+ 021027 170 (1.6- 2.3-) 030205 H43 (5.9+ 3.3+) 021011 644 0.5- 0.1- 021027 170 (4.0- 5.1-) 2009/ 021011 644 0.7- 0.3- 021031 735 0.3- 0.3+ 090815 415 1.7+ 0.0 021011 644 0.4- 0.2+ 021031 735 0.2+ 0.2- 090815 415 0.8- 0.2- 021012 620 0.2- 0.3+ 021031 735 0.4+ 0.1- 090815 415 0.5+ 0.9+ 021012 620 0.7- 0.9- 021104 349 0.3+ 0.8- 090815 A77 0.2+ 0.3- 021012 620 0.2+ 0.5+ 021104 349 0.8+ 0.3- 090815 A77 0.2+ 0.5+ 021012 620 0.1- 0.8- 021104 349 1.0- 0.2+ 090815 A77 0.1- 0.5+ 021012 673 0.8- 0.6+ 021104 349 0.1- 0.8- 090817 415 1.2- 1.0- 021012 673 0.5- 0.6+ 021105 360 0.6+ 0.1- 090817 415 0.2- 0.4- 021012 673 0.6- 0.8+ 021105 360 0.4+ 0.4- 090817 415 0.1- 0.0 021012 658 0.6+ 0.5+ 021105 213 0.5- 0.7+ 021012 658 0.0 0.5+ 021105 213 (1.6- 3.4-) ( ) -------- Rejected Obs.
Associate of the Central Bureau for Astronomical Telegrams Syuichi Nakano 2009 Aug. 20