Nakano Note (Nakano wa Kangaeru noda) NK 5288 208P/McMillan
The following improved orbital elements, by S. Nakano, are from 315 observations 2000 to 2024, 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. 2024 September observations show the residuals of +12" for Right Ascension and +6" for Declination from the prediction in NK 4731 (= CH 2023) with the delta-T correction = -0.007 day. The comet has passed 0.18 AU from Jupiter on 2004 July 9 UT. See the previous orbits in NK 1695, NK 2515, NK 3227 and NK 4731. Epoch = 2024 Sept. 7.0 TT T = 2024 Aug. 23.95896 +/- 0.00442 (m.e.) TT Peri. = 310.69439 +/- 0.00130 Node = 36.33422 +/- 0.00022 (2000.0) Inc. = 4.41253 +/- 0.00002 q = 2.5286828 +/- 0.0000023 AU e = 0.3737985 +/- 0.0000008 a = 4.0381295 +/- 0.0000062 AU n' = 0.12146012 +/- 0.00000028 P = 8.115 +/- 0.0000186 years A1 = -1.704 +/- 0.662 A2 = -0.11443 +/- 0.00241 T = 2000 Dec. 8.87605 TT Epoch = 2000 Dec. 2.0 TT Peri. = 217.37321 e = 0.3507748 Node = 152.98483 (2000.0) a = 4.1476001 AU Inc. = 7.13711 n'= 0.11668332 q = 2.6927265 AU P = 8.447 years T = 2008 May 13.17275 TT Epoch = 2008 May 14.0 TT Peri. = 310.47504 e = 0.3743466 Node = 36.41624 (2000.0) a = 4.0361708 AU Inc. = 4.41516 n'= 0.12154855 q = 2.5252439 AU P = 8.109 years T = 2016 July 1.79824 TT Epoch = 2016 June 21.0 TT Peri. = 310.51440 e = 0.3721373 Node = 36.41460 (2000.0) a = 4.0528757 AU Inc. = 4.40817 n'= 0.12079783 q = 2.5446496 AU P = 8.159 years The predicted orbit for the 2033 return is as follows: T = 2033 Jan. 28.02932 TT Epoch = 2033 Feb. 12.0 TT Peri. = 315.48531 e = 0.3461246 Node = 32.91681 (2000.0) a = 4.1906847 AU Inc. = 4.38857 n'= 0.11488851 q = 2.7401858 AU P = 8.579 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2000/ 081127 E85 0.4+ 0.1- 161009 F51 0.1+ 0.1+ 000923 699 1.3+ 0.8+ 081128 349 0.9+ 0.3+ 161009 F51 0.0 0.0 000923 699 1.5- 0.9- 081128 349 0.3+ 0.6+ 161009 F51 0.1+ 0.0 000923 699 0.1+ 0.8+ 081128 J79 1.7+ 0.1+ 161009 F51 0.0 0.1+ 000923 699 0.2+ 1.1- 081204 G96 0.2- 0.7- 161011 703 1.4- 1.8- 001002 699 0.0 0.2+ 081204 G96 1.4+ 0.1+ 161011 703 1.1- 0.1+ 001002 699 (1.7+ 2.5+) 081204 G96 0.8+ 0.3- 161011 703 0.1- 1.4- 001002 699 1.0- 0.1+ 081204 G96 0.8+ 0.0 161011 703 0.1- 0.1- 001002 699 0.9+ 0.0 081219 204 (0.5- 2.1+) 161022 G45 0.6+ 0.1- 2008/ 081221 104 0.2- 1.2- 161022 G45 0.0 1.0- 080920 691 0.4- 0.1- 081221 104 0.4- 0.9- 161022 G45 0.5- 0.3+ 080920 691 1.7- 0.7- 081221 104 0.4+ 0.6- 161022 G45 0.3- 0.5+ 080920 691 1.0- 0.2- 081223 349 1.6+ 0.7+ 161022 G45 0.0 0.3- 081006 691 (2.3- 0.5-) 081223 349 1.3+ 0.5+ 161022 G45 0.1- 0.2- 081006 691 1.6- 0.9- 081231 G96 1.0+ 0.2+ 161022 G45 0.1+ 0.1- 081006 691 1.2- 0.1- 081231 G96 0.6+ 0.2- 161022 G45 0.9+ 0.0 081010 691 1.7- 0.2- 081231 G96 0.8+ 0.2- 161022 G45 0.8+ 0.5- 081010 691 1.2- 0.1- 081231 G96 0.4+ 0.0 161023 G45 0.3- 0.1+ 081010 691 1.0- 0.2- 2009/ 161023 G45 0.4- 1.3+ 081019 291 0.8- 0.2+ 090101 G96 0.7+ 0.2- 161023 G45 0.5+ 0.4+ 081019 291 0.9- 0.3+ 090101 G96 1.1+ 0.2- 161023 G45 0.4+ 0.2+ 081019 291 1.2- 0.5+ 090101 G96 0.4+ 0.2+ 161023 G45 0.1- 0.1+ 081020 G96 0.2+ 0.1- 090101 G96 1.3+ 0.1- 161023 G45 0.3- 0.3- 081020 G96 0.4+ 0.1- 090101 204 0.6+ 0.5+ 161023 G45 0.5+ 0.1+ 081020 G96 0.5+ 0.1+ 090101 204 1.4+ 0.5- 161023 G45 0.3- 0.1- 081020 G96 0.2+ 0.1- 090120 A77 0.4- 0.4+ 161030 247 0.3+ 0.1- 081021 691 1.3- 0.2- 090120 A77 (2.5- 1.9-) 161030 247 0.6+ 0.1- 081021 691 1.6- 0.8- 090120 A77 1.1- 0.2- 161030 247 0.3- 0.1+ 081021 691 1.4- 0.0 090130 204 0.8+ 0.7+ 161101 F51 0.3+ 0.0 081025 215 0.4- 0.2+ 2016/ 161101 F51 0.1+ 0.0 081025 215 0.2+ 0.1- 160729 W96 0.1- 0.2- 161101 F51 0.2+ 0.3- 081025 215 0.1+ 0.2- 160729 W96 0.3+ 0.4- 161101 F51 0.1+ 0.0 081025 B49 0.5- 0.1+ 160729 W96 1.3+ 1.8- 161120 G45 0.0 0.7+ 081025 213 0.1+ 0.7- 160731 W96 1.8- 0.3- 161120 G45 0.8+ 0.1+ 081025 B49 1.1- 0.6+ 160731 W96 0.8- 0.1- 161120 G45 0.7+ 0.8+ 081025 213 0.4+ 0.5- 160731 W96 0.4- 0.0 161120 G45 1.0+ 0.2+ 081025 473 0.2- 0.0 160801 C10 0.5+ 0.3- 161120 I81 1.5+ 0.4- 081025 473 0.2- 0.0 160801 C10 0.3- 0.4+ 161120 I81 (2.5+ 0.9-) 081025 B37 0.1+ 0.4+ 160801 C10 0.6+ 1.9+ 161120 I81 0.7+ 0.4- 081025 B37 0.5+ 0.6+ 160802 F51 0.3+ 0.1+ 161123 G45 0.1+ 0.4+ 081026 B37 1.0+ 0.2+ 160802 F51 0.3+ 0.0 161123 G45 1.3+ 0.2- 081026 204 0.1+ 0.1+ 160802 F51 0.3+ 0.2+ 161123 G45 1.5+ 0.1- 081026 204 0.1+ 0.1+ 160802 F51 0.2+ 0.2+ 161123 G45 1.2+ 1.3+ 081026 673 0.2+ 0.4+ 160805 A71 0.1+ 0.1- 161124 G45 1.1+ 1.1+ 081026 704 0.5+ 0.5+ 160805 A71 0.4+ 0.3+ 161124 G45 1.6+ 0.4+ 081026 673 0.0 0.2+ 160907 215 1.2- 0.1- 161124 G45 0.5+ 0.8+ 081026 704 0.1+ 0.7+ 160907 215 1.2- 0.0 161124 G45 0.4+ 1.4+ 081026 673 0.2- 0.2+ 160907 215 0.7- 0.3- 2017/ 081026 673 0.5- 0.1+ 160907 G40 1.4- 0.4- 170101 215 0.6+ 0.2+ 081026 704 0.4+ 0.7+ 160907 G40 0.7- 0.3- 170101 215 1.4+ 0.8- 081026 704 0.1- 0.5- 160925 J43 0.5- 0.3- 170101 215 (2.8+ 1.6-) 081026 704 0.8+ 0.4+ 160925 J43 0.9- 0.8- 2024/ 081026 104 0.6- 0.6+ 160925 J43 0.6- 0.6- 240706 X07 0.2+ 0.1+ 081026 104 0.1+ 0.1- 160925 J43 1.1- 0.6- 240706 X07 0.1+ 0.3- 081026 104 0.5- 0.0 160925 160 0.2+ 0.3+ 240708 W62 0.4- 0.5+ 081026 473 0.0 0.1- 160925 160 1.0+ 0.5+ 240708 W62 0.6- 0.4+ 081027 372 0.0 1.4+ 160926 I81 1.1- 0.9- 240708 W62 0.6- 0.4+ 081027 372 1.0- 0.1- 160926 I81 0.6- 0.2- 240806 215 0.0 0.2+ 081027 372 1.0- 0.5+ 160926 I81 0.6- 0.4- 240806 215 0.2+ 0.0 081027 349 0.5- 0.3+ 160927 J43 0.3- 0.2+ 240806 215 0.3+ 0.0 081027 349 0.4- 0.2+ 160927 J43 0.9- 0.3- 240809 Z10 0.4+ 0.9- 081027 349 0.9- 0.2- 160927 J43 0.6- 0.5- 240809 Z10 0.4+ 0.8+ 081030 703 0.2+ 0.9- 160927 J43 0.3- 0.0 240812 F52 0.7+ 0.1+ 081030 703 0.7- 0.4- 160928 J43 0.0 0.4- 240812 F52 0.1+ 0.2- 081030 703 0.8- 0.4- 160928 J43 0.1+ 0.5- 240812 F52 0.9+ 0.0 081030 850 0.2- 0.2+ 160928 J43 0.4- 0.2- 240826 W68 0.4- 0.8- 081030 850 0.9- 0.1+ 160928 J43 0.2- 0.2- 240826 W68 0.3- 0.6- 081030 850 1.5- 0.4+ 160929 W96 0.7- 0.6- 240826 W68 0.5+ 0.7+ 081101 704 0.1+ 0.6+ 160929 W96 (2.6- 0.6-) 240826 W68 1.5- 0.8+ 081101 704 0.3- 1.2+ 160930 F51 0.1+ 0.1+ 240828 T08 0.5- 0.0 081101 704 0.5- 1.5+ 160930 F51 0.2+ 0.2+ 240828 T08 1.1- 0.4+ 081101 704 0.8+ 1.4+ 160930 F51 0.1+ 0.1+ 240828 T08 1.4+ 0.4- 081101 704 0.7- 1.3+ 161002 V30 0.2- 0.5- 240828 T08 0.2+ 0.1+ 081102 B49 (0.1- 2.2-) 161002 V30 0.8- 0.3+ 240829 Y87 0.9- 0.1- 081104 850 0.3- 0.4- 161002 703 (2.7- 0.0 ) 240829 Y87 0.7- 0.4- 081104 850 0.1+ 0.0 161002 703 (3.1- 1.1-) 240829 Y87 0.8- 0.8- 081104 850 0.3- 0.2- 161002 V30 (2.2- 0.1-) 240831 W68 0.6+ 0.2- 081107 204 0.3+ 0.1+ 161002 703 (2.5- 1.2-) 240831 W68 0.7+ 0.8- 081108 204 0.3+ 0.0 161002 V30 1.2- 0.2+ 240831 W68 0.2+ 0.1+ 081108 691 0.1+ 0.4+ 161003 H06 0.6- 0.5- 240831 W68 0.6+ 0.2- 081108 691 0.8- 0.2+ 161003 H06 0.5- 0.3- 240901 K77 1.1- 0.2+ 081108 691 0.1- 0.2+ 161003 H06 0.3- 0.1+ 240901 K77 1.8- 0.1- 081113 473 0.7+ 0.2- 161003 B96 (2.1- 0.3+) 240903 G96 0.2- 0.1- 081114 473 0.8- 0.0 161003 B96 0.1+ 0.0 240903 G96 0.2- 0.3- 081114 473 0.8- 0.0 161003 B96 1.0+ 0.8- 240903 G96 0.3- 0.4- 081114 J47 0.1+ 0.8- 161003 B96 1.3+ 0.8- 240903 G96 0.2- 0.4- 081116 104 1.2+ 1.3+ 161004 B96 0.6- 1.3- 240904 F52 0.4+ 0.0 081116 104 1.6+ 0.6+ 161004 B96 0.7- 1.0- 240904 F52 0.3+ 0.1- 081116 104 0.2+ 0.9+ 161004 B96 0.2+ 0.3- 240904 F52 0.4+ 0.1- 081118 H45 0.4- 0.5- 161004 B96 1.1+ 0.7+ 240904 F52 0.3+ 0.1- 081118 H45 0.3+ 0.6- 161004 B96 0.8- 0.9+ 240905 T08 0.1+ 0.8+ 081118 H45 0.1+ 0.3+ 161004 B96 0.8- 1.2+ 240905 T08 0.6- 0.1- 081118 H45 0.2+ 0.2+ 161004 J01 0.2- 0.4+ 240905 T08 0.9- 0.4+ 081118 H45 0.7+ 0.7- 161004 J01 0.0 1.0+ 240905 T08 0.5+ 0.3- 081118 585 (4.2+ 2.1-) 161004 J01 0.9- 0.2- 240906 W68 0.3+ 0.3+ 081118 585 (2.5+ 2.1-) 161005 G45 1.7- 0.1- 240906 W68 0.6- 0.3- 081118 585 0.8+ 1.9- 161005 G45 0.1- 0.1+ 240906 W68 0.3- 0.0 081118 585 (0.2- 2.3-) 161005 G45 0.6- 0.0 240906 W68 0.9- 0.0 081118 585 (1.4+ 2.2-) 161005 G45 0.6- 0.1+ 240906 W62 0.3- 0.1- 081119 850 1.4+ 0.2- 161005 G45 0.0 0.9- 240906 W62 0.4- 0.0 081119 850 0.8+ 0.0 161005 B96 0.3- 0.5+ 240906 W62 0.3- 0.1+ 081119 704 0.8+ 0.8- 161005 B96 0.1- 0.3+ 240907 T05 0.7- 0.8+ 081119 850 0.2+ 0.3- 161005 B96 1.7- 0.1- 240907 T05 0.6+ 0.5- 081119 704 0.1- 0.1- 161005 B96 1.7- 0.3- 240907 T05 0.2+ 0.1- 081119 704 0.9- 0.0 161005 B96 1.4- 0.4- 240907 T05 0.2+ 0.1- 081119 704 0.7- 1.6- 161005 B96 0.4- 0.3- 240909 T08 0.8+ 0.7+ 081119 900 0.1+ 0.3- 161007 G45 0.3- 0.7- 240909 T08 0.0 0.2- 081119 900 0.9+ 0.4- 161007 G45 1.3- 0.0 240909 T08 0.3- 0.5+ 081119 130 (2.2+ 0.5+) 161007 G45 0.2+ 0.6- 240909 T08 0.8- 0.8+ 081119 130 1.8+ 0.7+ 161007 691 1.5- 0.2- 240911 D95 0.3- 0.4+ 081125 372 1.1+ 1.3- 161007 691 1.7- 0.1- 240911 D95 (2.5- 0.7-) 081125 372 0.0 0.6+ 161007 691 1.0- 0.5+ 240911 D95 0.8- 0.4+ 081127 E85 0.5+ 0.4- 161007 G45 1.2- 0.7- 081127 E85 0.8+ 1.0+ 161007 G45 1.0- 0.5- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2024 Sept. 27