Nakano Note (Nakano wa Kangaeru noda) NK 2713 54P/de Vico-Swift

The following improved orbital elements, by T. Kobayashi, are from 118 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 +/- 0.60 arc second. See the previous orbits in NK 363, NK 569, NK 569R, NK 962 and NK 1813 (= HICQ 2009). Epoch = 2009 Nov. 25.0 TT T = 2009 Nov. 28.50082 +/- 0.00035 (m.e.) TT Peri. = 1.90960 +/- 0.00076 Node = 358.85314 +/- 0.00063 (2000.0) Inc. = 6.06838 +/- 0.00005 q = 2.1719961 +/- 0.0000030 AU e = 0.4267004 +/- 0.0000010 a = 3.7885882 +/- 0.0000096 AU n' = 0.13365585 +/- 0.00000066 P = 7.374 +/- 0.0000265 years A1 = +0.676 +/- 0.039 A2 = +0.06893 +/- 0.00094 T = 1965 Aug. 23.25258 TT Epoch = 1965 Aug. 28.0 TT Peri. = 325.41367 e = 0.5244165 Node = 25.06618 (2000.0) a = 3.4154054 AU Inc. = 3.61233 n'= 0.15614953 q = 1.6243104 AU P = 6.312 years [ T = 1973 Feb. 13.64579 TT Epoch = 1973 Feb. 7.0 TT Peri. = 1.78497 e = 0.4253999 Node = 359.33293 (2000.0) a = 3.7897945 AU Inc. = 6.08907 n'= 0.13359204 q = 2.1776163 AU P = 7.378 years ] [ T = 1980 July 9.07791 TT Epoch = 1980 July 20.0 TT Peri. = 1.87042 e = 0.4242038 Node = 359.28585 (2000.0) a = 3.8010103 AU Inc. = 6.08069 n'= 0.13300118 q = 2.1886072 AU P = 7.411 years ] [ T = 1987 Nov. 29.72637 TT Epoch = 1987 Nov. 21.0 TT Peri. = 1.82106 e = 0.4256003 Node = 359.26939 (2000.0) a = 3.7938113 AU Inc. = 6.08477 n'= 0.13337993 q = 2.1791641 AU P = 7.389 years ] [ T = 1995 Apr. 2.88194 TT Epoch = 1995 Mar. 24.0 TT Peri. = 1.84136 e = 0.4308139 Node = 359.05040 (2000.0) a = 3.7676522 AU Inc. = 6.08837 n'= 0.13477144 q = 2.1444954 AU P = 7.313 years ] T = 2002 July 30.92663 TT Epoch = 2002 July 25.0 TT Peri. = 2.04877 e = 0.4307090 Node = 358.96518 (2000.0) a = 3.7677252 AU Inc. = 6.08496 n'= 0.13476752 q = 2.1449322 AU P = 7.313 years The predicted orbit for the 2017 return is as follows: T = 2017 Apr. 15.43852 TT Epoch = 2017 Mar. 28.0 TT Peri. = 1.85580 e = 0.4245656 Node = 358.85348 (2000.0) a = 3.7967405 AU Inc. = 6.05721 n'= 0.13322560 q = 2.1847752 AU P = 7.398 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1965/ 021027 170 (1.6- 2.3-) 2009/ 650804 689 1.3+ 0.2+ 021027 170 (4.0- 5.1-) 090815 415 1.2+ 0.1- 650804 693 1.0- 0.2- 021029 372 (1.8- 2.1-) 090815 415 1.3- 0.3- 650804 689 0.0 0.3+ 021029 372 (2.2- 2.2-) 090815 415 0.1+ 0.9+ 650806 689 0.2+ 0.5- 021029 372 (1.5- 1.9-) 090815 A77 0.3- 0.3- 650806 689 0.6- 0.5- 021031 735 0.3- 0.2+ 090815 A77 0.2- 0.4+ 650825 689 1.0- 0.2+ 021031 735 0.2+ 0.2- 090815 A77 0.6- 0.5+ 650825 689 1.3- 0.4+ 021031 735 0.4+ 0.2- 090817 415 (1.6- 1.1-) 650902 689 0.4+ 0.1- 021031 644 0.2- 0.5+ 090817 415 0.7- 0.4- 650902 689 0.3+ 0.1- 021031 644 0.6+ 0.3+ 090817 415 0.6- 0.0 650925 689 1.0+ 0.1+ 021031 644 0.3- 0.5+ 090818 415 (1.6- 0.2+) 650925 689 1.1+ 0.1- 021031 608 0.5+ 0.6+ 090818 415 0.1- 0.9- 651015 689 0.5- 0.3+ 021031 608 0.8+ 0.1+ 090821 204 0.1- 0.2+ 651015 689 0.4- 0.3+ 021031 608 0.6+ 0.3- 090823 215 (0.1+ 1.7-) 2002/ 021102 372 0.1+ 0.9- 090827 204 0.7- 0.5- 021004 704 0.9+ 0.4+ 021104 349 0.3+ 0.9- 090827 204 0.3+ 0.2- 021004 704 0.4- 0.5+ 021104 349 0.8+ 0.3- 090919 204 0.0 0.2- 021004 704 0.6+ 0.1+ 021104 349 1.0- 0.1+ 090919 204 0.2- 0.5- 021009 704 (2.6- 1.2+) 021104 349 0.1- 0.8- 090920 900 (0.4- 3.1-) 021009 704 (1.4- 2.6+) 021104 608 0.6- 1.1+ 090920 900 1.0+ 1.0+ 021009 704 0.6+ 0.2- 021104 608 (0.0 1.8+) 090922 291 0.0 0.0 021009 704 0.0 1.3+ 021104 372 0.6- 1.2- 090922 291 0.4+ 0.0 021011 644 0.5- 0.0 021104 608 0.4+ 1.4+ 090922 291 0.1+ 0.2+ 021011 644 0.7- 0.2- 021105 360 0.6+ 0.2- 090922 A77 0.4+ 1.0+ 021011 644 0.4- 0.2+ 021105 360 0.4+ 0.4- 090923 215 0.1+ 0.3+ 021012 620 0.2- 0.4+ 021105 213 0.5- 0.7+ 090925 291 0.2- 0.4- 021012 620 0.7- 0.9- 021105 213 (1.6- 3.4-) 090925 291 0.0 0.2+ 021012 620 0.2+ 0.6+ 021107 735 0.6- 0.6+ 090925 291 0.4- 0.0 021012 620 0.1- 0.8- 021107 735 (1.6+ 0.2-) 091008 E12 0.8+ 0.7- 021012 673 0.8- 0.6+ 021107 735 (1.5+ 1.1+) 091008 E12 0.4- 0.2+ 021012 673 0.5- 0.6+ 021112 644 1.3- 0.1- 091008 E12 (0.9+ 1.6+) 021012 673 0.6- 0.8+ 021112 644 1.1- 0.1- 091008 E12 0.1+ 0.2+ 021012 658 0.6+ 0.5+ 021112 704 0.5- 0.9+ 091009 A77 1.4+ 0.5- 021012 658 0.0 0.5+ 021112 644 0.2- 0.4+ 091009 A77 0.6+ 0.1+ 021012 658 0.3+ 0.4+ 021112 704 0.0 1.1- 091010 349 0.3+ 0.9+ 021012 926 0.0 0.1- 021112 704 (2.0+ 0.7+) 091010 349 (1.0+ 1.8+) 021012 926 0.5- 0.6- 021112 704 0.5- 1.1- 091016 D25 1.3+ 0.1- 021012 J95 (2.0+ 0.1-) 021113 644 0.1+ 1.0+ 091016 D25 0.5+ 0.1+ 021012 J95 0.1+ 0.1+ 021113 644 0.4+ 0.0 091016 D25 (1.1- 2.6+) 021012 J95 0.4+ 0.7- 021113 644 0.2+ 0.7+ 091022 291 0.1- 0.2- 021013 170 1.0- 1.4- 021126 372 (0.4+ 2.2-) 091022 291 0.2- 0.1- 021013 170 (1.6- 0.6-) 021226 H43 (2.8+ 0.4-) 091022 291 0.5- 0.4- 021013 349 1.1+ 0.5- 021227 H43 (6.2+ 2.7+) 091108 I10 (2.1+ 0.6-) 021013 349 0.6+ 0.2- 021227 H43 (6.2- 1.1+) 091108 I10 0.9- 0.4- 021013 372 0.8- 0.6+ 021227 360 0.0 0.4+ 091110 I10 (5.6+ 7.8-) 021013 349 (2.2- 0.3+) 021227 360 (1.3+ 2.7+) 091111 130 0.3- 0.8- 021013 372 1.1+ 0.0 021227 360 (0.1- 1.6+) 091207 I10 0.3- 0.7- 021014 360 0.8+ 0.3- 021228 H43 (1.4- 1.6-) 091207 I10 (5.6+ 1.1-) 021014 360 0.5+ 0.2+ 021228 H43 (4.0- 4.4+) 091208 A77 0.6- 0.4+ 021014 360 0.3- 0.4- 2003/ 091211 372 0.1- 0.2- 021015 372 (0.4- 1.5+) 030103 H43 (2.8- 2.5+) 091215 A77 (0.3- 1.8-) 021025 213 (1.6- 3.8+) 030103 H43 (4.1- 0.7+) 091215 A77 (1.2- 2.0-) 021025 213 (1.7+ 2.2-) 030124 A03 (4.6- 2.2+) 091215 A77 0.3+ 0.9- 021025 213 0.7- 1.3- 030124 A03 (9.3- 2.6-) 091220 349 (0.6+ 1.6-) 021026 608 1.0+ 0.9- 030205 H43 (4.6- 1.7-) 091220 349 1.4+ 0.9- 021027 170 0.4+ 0.4- 030205 H43 (5.6+ 3.0+) ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2014 June 9

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