Nakano Note (Nakano wa Kangaeru noda) NK 3637 106P/Schuster
The following improved orbital elements, by S. Nakano, are from 263 observations 1977 to 2015, 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 +/- 0.74 arc second. The comet has passed 1.04 AU and 0.53 AU from Jupiter on 1983 May 3 and 2018 June 1, respectively. And also the comet has made a close approach to Mars until 0.098 AU on 1992 Sept. 12 UT. See the previous orbits in NK 296, NK 301, NK 310, NK 333, NK 370, NK 508, NK 644, NK 1043 (= MPC 51822), NK 2149 and 2758. Epoch = 2014 July 2.0 TT T = 2014 July 20.15108 +/- 0.00015 (m.e.) TT Peri. = 355.91558 +/- 0.00006 Node = 50.54374 +/- 0.00003 (2000.0) Inc. = 20.14867 +/- 0.00001 q = 1.5460509 +/- 0.0000004 AU e = 0.5883613 +/- 0.0000001 a = 3.7558445 +/- 0.0000004 AU n' = 0.13540748 +/- 0.00000002 P = 7.279 +/- 0.0000012 years A1 = +0.074 +/- 0.004 A2 = +0.00860 +/- 0.00007 T = 1978 Jan. 6.81240 TT Epoch = 1978 Jan. 12.0 TT Peri. = 353.92850 e = 0.5740247 Node = 51.52049 (2000.0) a = 3.8208449 AU Inc. = 20.44746 n'= 0.13196688 q = 1.6275854 AU P = 7.469 years [ T = 1985 June 2.52492 TT Epoch = 1985 May 15.0 TT Peri. = 355.62904 e = 0.5902372 Node = 50.67356 (2000.0) a = 3.7448829 AU Inc. = 20.15265 n'= 0.13600244 q = 1.5345138 AU P = 7.247 years ] T = 1992 Sept. 6.41573 TT Epoch = 1992 Sept.15.0 TT Peri. = 355.73083 e = 0.5895207 Node = 50.60180 (2000.0) a = 3.7498566 AU Inc. = 20.13379 n'= 0.13573195 q = 1.5392383 AU P = 7.261 years T = 1999 Dec. 16.22587 TT Epoch = 1999 Dec. 8.0 TT Peri. = 355.85831 e = 0.5879213 Node = 50.58924 (2000.0) a = 3.7607410 AU Inc. = 20.13867 n'= 0.13514312 q = 1.5497212 AU P = 7.293 years T = 2007 Apr. 2.22421 TT Epoch = 2007 Apr. 10.0 TT Peri. = 355.82905 e = 0.5868020 Node = 50.61222 (2000.0) a = 3.7660790 AU Inc. = 20.11128 n'= 0.13485590 q = 1.5561362 AU P = 7.309 years The predicted orbit for the 2021 return is as follows: T = 2021 Aug. 18.76793 TT Epoch = 2021 Aug. 14.0 TT Peri. = 353.66670 e = 0.5936752 Node = 48.88594 (2000.0) a = 3.7620885 AU Inc. = 19.53646 n'= 0.13507052 q = 1.5286299 AU P = 7.297 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1977/ 991104 900 0.9- 0.1+ 000128 360 0.6- 0.1+ 770905 809 (2.4+ 2.6+) 991107 351 1.3- 0.3- 000128 360 0.2- 0.6+ 770906 809 1.1+ 0.9+ 991107 351 0.5+ 0.8- 000131 704 (3.6+ 0.8+) 770906 809 1.8+ 1.0+ 991107 351 1.1- 0.4- 000131 704 (3.9+ 1.4+) 770907 809 1.2+ 1.2+ 991110 704 (5.7+ 2.9+) 000131 704 (3.5+ 2.4+) 770907 809 1.0- 0.2+ 991110 704 (4.8+ 3.9+) 000131 704 (3.3+ 1.2+) 770907 809 0.5- 0.5+ 991110 704 (1.8+ 2.4+) 000205 349 0.5- 0.4+ 770911 809 0.2+ 0.1- 991110 704 (3.9+ 4.5+) 000205 349 0.2- 0.3- 770916 413 (2.5- 3.5+) 991110 704 (3.7+ 6.0+) 000301 900 (2.0+ 1.4+) 771009 809 1.3+ 1.3- 991110 360 0.1- 0.7- 000301 360 0.6+ 0.3+ 771010 809 0.6+ 1.4- 991110 360 0.0 0.6- 000301 360 0.7+ 0.6+ 771010 809 0.8+ 0.1- 991112 695 1.4+ 1.2+ 000301 900 0.2+ 1.8+ 771011 809 1.1+ 0.9- 991112 695 (1.8+ 3.1+) 2006/ 771012 809 1.4+ 0.7- 991112 695 1.7+ 1.4+ 061215 E12 1.5+ 0.4- 771013 809 0.4+ 0.6- 991113 897 0.9+ 0.6+ 061219 E12 1.1+ 0.3+ 771013 809 1.2+ 0.4- 991113 897 0.4+ 0.6+ 061221 844 (3.4+ 1.6+) 771013 809 1.5+ 1.4- 991113 351 0.5+ 1.3+ 061221 844 (2.0+ 1.8+) 771014 809 1.1+ 0.6- 991113 351 0.5+ 1.2+ 061221 844 1.7+ 0.3- 771015 809 1.0+ 1.4- 991113 897 0.8+ 0.4+ 061221 844 1.4+ 0.5- 771015 809 0.6- 0.2+ 991113 351 1.3+ 0.8+ 061221 844 (2.9+ 2.1+) 771016 809 0.3- 0.7- 991113 349 0.0 0.1+ 061222 844 1.9+ 1.7+ 771017 809 0.3+ 1.0- 991113 349 0.5+ 0.2+ 061222 844 (7.8+ 2.2+) 771019 805 0.1+ 0.6+ 991113 349 0.4+ 0.1+ 061222 844 (3.7+ 2.6+) 771031 323 0.8- 0.9- 991115 699 (4.8+ 3.4+) 061222 844 (4.4+ 2.6+) 771108 809 0.4+ 1.1- 991115 699 (5.4+ 4.0+) 061227 844 (2.2+ 0.3+) 771110 809 0.5- 2.4- 991115 699 (6.5+ 6.5+) 061227 844 (3.8+ 1.8+) 771110 809 0.0 1.8- 991115 474 0.9+ 1.0+ 061231 349 (2.6+ 0.5+) 771111 808 1.5- 0.6- 991115 474 0.5+ 0.1- 061231 349 (2.3+ 0.7+) 771111 808 0.5+ 0.2+ 991118 349 0.7+ 0.2- 061231 349 (2.4+ 1.1+) 771113 809 0.2+ 1.2- 991118 349 0.7- 0.1- 2007/ 771114 805 0.4+ 0.0 991118 349 0.0 0.4- 070113 215 1.4+ 0.3+ 771116 805 2.2- 0.6+ 991120 046 0.4+ 0.2+ 070113 215 1.6+ 0.5+ 771203 809 0.5- 0.1+ 991120 046 0.2+ 0.1+ 070113 215 1.7+ 0.9+ 771203 809 0.8- 0.9- 991120 046 0.2+ 0.1+ 070127 349 (2.0+ 1.4+) 771203 879 1.1- 0.4- 991128 351 1.7- 1.4- 070127 349 (2.7+ 1.9+) 771204 323 0.5- 1.7- 991128 351 0.2- 0.5+ 2014/ 1978/ 991128 900 0.1+ 0.5+ 140609 W96 0.5+ 0.2+ 780102 323 0.0 0.1+ 991128 351 0.4+ 0.4- 140609 W96 1.6+ 0.8+ 780108 809 0.9+ 0.6+ 991128 900 0.1+ 0.4+ 140609 W96 (2.0+ 0.2+) 1992/ 991128 349 0.6- 0.3- 140701 W96 0.6- 0.8+ 920728 372 (5.4- 1.3-) 991128 349 0.0 1.0- 140701 W96 0.9- 0.5+ 920728 372 (3.0- 1.3-) 991128 349 0.5+ 0.0 140701 W96 0.1+ 0.1+ 920729 372 (7.3- 1.2-) 991130 360 0.8- 0.1+ 140701 W96 1.2+ 0.7+ 920729 372 (6.2- 3.1-) 991130 360 0.8- 0.1- 140711 D95 (4.0- 1.7-) 920825 801 (2.1+ 0.2-) 991130 897 0.1- 1.3- 140711 D95 (2.7- 1.9-) 920825 801 1.7- 0.2- 991130 897 0.0 1.2- 140720 D95 1.8- 1.3+ 920827 657 0.6- 0.2+ 991202 704 1.0- 1.3- 140720 D95 1.6- 0.7+ 920827 657 0.0 0.2+ 991202 704 (9.1+ 2.5+) 140728 349 0.9- 0.7+ 920828 657 0.6+ 0.6+ 991202 704 (2.1+ 0.8+) 140728 349 0.4- 0.2+ 920828 657 1.2- 0.6- 991202 704 (7.5+ 2.4+) 140808 215 1.1- 0.0 920828 657 0.5- 0.2+ 991202 704 (2.0+ 4.1-) 140808 215 0.6- 0.4+ 920905 411 (3.1- 2.6-) 991203 704 (7.2+ 1.0+) 140808 215 1.3- 0.0 920905 411 1.3- 1.0- 991203 704 (4.1+ 0.6+) 140817 C47 0.4- 0.9+ 920905 411 1.9- 0.7- 991203 704 (4.1+ 0.8+) 140817 C47 0.6+ 0.2+ 920925 801 1.6- 0.2- 991203 704 (4.2+ 1.5+) 140817 C47 0.0 0.2+ 920925 801 0.8- 0.3+ 991208 360 0.4- 0.0 140817 C47 0.1- 0.1+ 920925 360 1.4+ 0.3+ 991208 360 0.1- 0.0 140817 C47 0.6- 0.9+ 920925 360 0.6+ 0.0 991209 699 (6.6+ 1.9+) 140818 C47 0.3- 0.9- 920929 033 2.0+ 0.3+ 991210 349 0.3- 0.7- 140818 C47 0.4- 0.2- 920929 033 (5.7- 0.2+) 991210 349 0.1- 0.2- 140818 C47 1.0- 0.7+ 921001 801 1.6- 1.1+ 991210 349 0.1- 0.1- 140822 U69 0.3+ 0.1+ 921001 801 0.7- 0.1+ 991221 355 0.1- 0.3+ 140822 U69 0.3+ 0.2+ 921022 691 0.2+ 0.2- 991221 355 0.4+ 0.6+ 140828 C47 0.1- 0.2+ 921022 691 0.5- 0.4+ 991221 355 0.5+ 0.5+ 140828 C47 0.0 0.0 921023 801 0.9+ 1.0- 991222 046 0.5- 0.0 140828 C47 0.1- 0.6+ 921023 801 1.0- 0.4+ 991222 046 0.9- 0.1- 140828 C47 0.2- 0.6+ 921025 360 0.0 0.1+ 991222 046 0.6- 0.1+ 140828 C47 0.2+ 0.2+ 921025 360 0.9+ 0.2- 991222 046 0.3- 0.1- 140831 H06 0.3- 0.3+ 921028 801 (2.6+ 0.6-) 991222 118 0.0 0.6+ 140831 H06 0.2+ 0.1+ 921028 801 0.8+ 0.0 991222 118 0.3- 0.4+ 140904 A77 (3.6- 1.0+) 921030 411 1.0- 1.4- 991223 349 0.9- 0.2- 140904 A77 (2.8- 0.8-) 921030 411 1.5- 0.4- 991223 349 0.3- 0.3- 140904 A77 (3.0- 0.4+) 921102 033 0.9+ 0.5+ 991223 349 1.0- 0.4- 140906 C47 0.6+ 0.3+ 921102 033 1.4+ 0.7+ 991223 900 1.0- 0.4+ 140906 C47 0.1+ 0.2+ 921102 033 0.4- 0.1- 991223 900 0.2- 0.6+ 140906 C47 0.8- 0.2+ 921102 033 0.4+ 0.7- 991224 897 0.3- 0.2+ 140906 C47 0.1- 0.0 921121 411 0.5+ 0.0 991224 897 0.6- 0.1+ 140906 C47 0.0 0.2- 921121 411 0.8- 0.4- 991228 351 0.3- 1.0+ 140906 C47 0.1- 0.1- 921124 360 0.9+ 0.2+ 991228 351 0.2+ 1.2- 140915 U69 0.1+ 0.5+ 921124 360 0.4+ 0.6- 991228 351 1.3+ 0.3- 140915 U69 0.0 0.4+ 921130 360 0.5+ 0.2- 991231 351 (2.9- 0.8+) 140920 D95 0.2- 0.3+ 921130 360 0.3+ 0.1+ 991231 351 1.2- 0.4+ 140920 D95 0.2+ 0.1- 921201 691 0.7+ 0.7- 991231 351 0.5+ 0.1+ 140920 D95 0.3+ 0.5+ 921201 691 0.5+ 0.4- 2000/ 140924 703 0.4- 0.5+ 921201 691 1.0+ 0.8- 000101 897 0.1+ 0.3+ 140924 703 0.2+ 0.8+ 921218 596 (6.1- 0.2+) 000101 897 1.3+ 0.0 140924 703 0.8+ 0.2- 921218 596 (9.8- 3.0+) 000101 897 0.5+ 0.1+ 140924 703 0.5- 0.3+ 1999/ 000102 367 0.2- 0.6+ 140928 349 1.3- 1.4+ 990901 413 0.3+ 0.4- 000102 367 0.2- 0.6+ 140928 349 1.5- 1.4+ 990901 413 0.3+ 0.5- 000102 367 0.3- 0.4+ 141014 703 (5.2- 2.8+) 990914 413 0.3+ 0.5- 000103 587 0.0 1.0+ 141014 703 (4.2- 2.5+) 990914 413 0.5+ 0.5- 000103 587 0.2- 0.3+ 141014 703 (3.6- 1.6+) 991006 704 0.5- 0.9- 000104 360 0.3- 0.3+ 141022 703 1.4- 0.6+ 991006 704 0.2- 0.0 000104 360 0.3- 0.3+ 141022 703 0.5- 0.4+ 991006 704 1.2- 0.8- 000107 704 (0.5+ 2.1+) 141022 703 (2.0- 0.7+) 991006 704 1.3- 1.5- 000107 704 (3.1+ 0.9+) 141022 703 0.0 0.4+ 991009 900 1.4- 1.6+ 000107 704 (5.3+ 1.3+) 141115 349 1.6- 0.9+ 991009 900 1.0- 1.4+ 000107 704 0.1+ 0.9+ 141115 349 (2.1- 0.7+) 991017 360 0.0 0.2- 000107 704 (1.7+ 4.4-) 141118 C51 0.2- 1.2- 991017 360 0.0 0.2- 000108 349 0.2- 0.2- 141118 C51 0.3+ 0.1- 991020 897 0.9+ 0.2+ 000108 349 0.6+ 0.1+ 141118 C51 0.2- 0.7+ 991020 897 0.8+ 0.2+ 000108 349 0.1+ 1.3+ 141118 C51 0.7+ 0.5+ 991020 349 0.5- 0.5- 000108 351 (0.1+ 3.3-) 141118 C51 0.0 1.7+ 991020 349 0.3- 0.3- 000108 351 0.3- 1.1- 2015/ 991020 349 0.4- 0.7- 000108 351 1.1+ 1.7- 150112 F51 0.1- 0.5- 991024 402 0.2+ 0.4- 000111 402 0.6- 0.8- 150112 F51 0.2- 0.5- 991024 402 0.3- 0.4- 000111 402 0.5+ 0.7+ 150112 F51 0.3- 0.4- 991024 402 0.1- 0.8- 000111 402 0.4+ 0.1+ 150322 F51 0.1- 0.2- 991103 402 0.3- 0.7+ 000118 900 0.1- 0.5+ 150322 F51 0.1+ 0.0 991103 402 0.3- 0.6+ 000118 900 0.4- 0.2+ 150322 F51 0.0 0.2- 991104 360 0.2- 0.0 000122 349 0.9+ 0.6+ 150322 F51 0.0 0.0 991104 360 0.3- 0.2- 000122 349 0.1- 0.1- 991104 900 0.6- 0.3+ 000122 349 0.2+ 0.3- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2018 Aug. 2