Nakano Note (Nakano wa Kangaeru noda) NK 5207 194P/LINEAR
The following improved orbital elements, by S. Nakano, are from 177 observations 2007 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 +/- 0.70 arc second. Residuals for 2024 February observations were -57" for Right Ascension and +8" for Declination from the prediction in NK 3068 (= CH 2024) with the delta-T correction = +0.02 day. The comet has passed 0.56 AU from Jupiter on 2021 Dec. 9 UT. See the previous orbits in NK 738, NK 1551 (= YC 2574), NK 2504 and NK 3068. Epoch = 2024 Feb. 20.0 TT T = 2024 Feb. 4.22331 +/- 0.00055 (m.e.) TT Peri. = 128.56316 +/- 0.00024 Node = 349.52498 +/- 0.00010 (2000.0) Inc. = 11.80599 +/- 0.00002 q = 1.7995592 +/- 0.0000038 AU e = 0.5631798 +/- 0.0000003 a = 4.1196793 +/- 0.0000090 AU n' = 0.11787154 +/- 0.00000039 P = 8.362 +/- 0.0000275 years A1 = -0.102 +/- 0.049 A2 = +0.00041 +/- 0.00016 T = 2008 Feb. 26.18848 TT Epoch = 2008 Feb. 24.0 TT Peri. = 130.63902 e = 0.5742084 Node = 352.06483 (2000.0) a = 4.0131267 AU Inc. = 11.11806 n'= 0.12259698 q = 1.7087556 AU P = 8.039 years T = 2016 Mar. 2.44396 TT Epoch = 2016 Feb. 22.0 TT Peri. = 130.71244 e = 0.5754793 Node = 351.99401 (2000.0) a = 3.9991656 AU Inc. = 11.13807 n'= 0.12323952 q = 1.6977287 AU P = 7.997 years The predicted orbit for the 2032 return is as follows: T = 2032 June 24.54601 TT Epoch = 2032 June 17.0 TT Peri. = 128.61862 e = 0.5619047 Node = 349.47771 (2000.0) a = 4.1342493 AU Inc. = 11.79184 n'= 0.11724898 q = 1.8111951 AU P = 8.406 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2007/ 080105 585 0.1- 0.2- 151230 G40 0.5+ 0.5+ 071117 204 1.0- 0.6+ 080106 213 0.2+ 0.6- 151230 G40 0.7+ 0.3+ 071117 204 0.4- 1.1+ 080106 213 0.4+ 0.3- 151230 G40 0.6+ 0.4+ 071126 204 0.3- 0.1- 080106 213 0.2+ 0.1- 2016/ 071127 204 0.5- 0.2+ 080108 204 0.2+ 0.3- 160114 G45 0.8+ 0.5- 071128 850 0.6- 0.4+ 080108 204 0.2- 0.2- 160114 G45 0.3+ 0.3+ 071128 850 0.6- 0.3+ 080128 A77 1.3- 0.7+ 160114 G45 0.9+ 0.7+ 071128 215 0.3- 0.0 080129 J47 0.4- 0.0 160114 G45 0.7+ 0.6+ 071128 J47 0.3+ 0.4- 080129 J47 0.4+ 0.6- 160114 G45 0.9+ 0.7+ 071128 J47 0.2+ 0.5- 080129 J47 0.6- 0.8- 160114 G45 1.0+ 0.0 071128 J47 0.3+ 0.3- 080202 704 0.6+ 0.6- 160130 G40 1.5+ 0.8+ 071130 850 1.2- 0.2+ 080202 704 (4.7+ 2.9-) 160130 G40 1.0+ 0.2+ 071130 850 0.4- 0.2- 080202 704 (0.7- 3.5+) 160207 585 1.7+ 1.3+ 071130 850 0.2- 0.2+ 080202 704 0.7+ 0.0 160207 585 1.7+ 0.5+ 071130 349 1.1- 0.6- 080202 704 0.0 0.1- 160207 585 1.6+ 1.4+ 071130 349 1.2- 0.7- 080207 204 0.4- 0.3- 160207 585 0.8+ 1.4+ 071130 213 0.3- 0.1- 080222 204 0.3- 0.5+ 160217 585 1.8+ 0.2- 071130 213 0.3+ 0.8+ 080222 204 0.4- 0.1- 160217 585 1.7+ 0.0 071130 213 0.4+ 1.3+ 080227 J47 0.7+ 0.1- 160217 585 1.0+ 0.2+ 071201 J47 0.6- 0.1- 080227 J47 0.0 0.3- 160217 585 1.4+ 0.2- 071201 J47 0.3- 0.6- 080227 J47 0.1+ 0.3- 160217 585 0.3- 0.3- 071201 J47 0.6- 0.5- 080227 J47 0.4- 0.3- 160217 585 0.7+ 0.1- 071201 954 0.2+ 0.4+ 080302 J47 1.5- 0.0 160217 585 0.1+ 0.2+ 071201 954 0.0 0.3- 080302 J47 0.4- 0.2- 160221 F51 0.4- 0.4+ 071201 954 0.0 0.7- 080302 J47 0.9- 0.2- 160221 F51 0.3- 0.2+ 071204 130 0.2- 0.3- 080307 704 1.9+ 0.8+ 160221 F51 0.4- 0.3+ 071204 130 0.9- 0.3- 080307 704 (3.8+ 0.2+) 160221 F51 0.6- 0.2- 071204 130 1.0- 0.5- 080307 704 1.6+ 0.1+ 160314 215 0.6+ 0.0 071204 130 0.4- 0.3+ 080307 704 (2.6+ 0.2+) 160314 215 1.0+ 0.3- 071205 561 0.5- 0.6- 080320 J47 0.4+ 0.1- 160314 215 1.3+ 0.3- 071205 561 0.4+ 0.1- 080320 J47 1.0+ 0.3+ 160327 H06 0.4+ 0.5+ 071205 561 0.4+ 0.6+ 080320 J47 1.5+ 1.8+ 160327 H06 0.7+ 0.8+ 071206 J46 0.1+ 1.6- 080330 704 1.9- 0.1- 160327 H06 1.0+ 0.8+ 071206 213 0.7+ 0.4- 080330 704 1.0+ 0.1+ 160331 F51 0.5- 0.1- 071206 213 0.4+ 0.2- 080330 704 0.7- 0.5+ 160331 F51 0.4- 0.1- 071206 213 0.5+ 0.3- 080330 704 (4.6+ 0.2-) 160331 F51 0.5- 0.1- 071206 213 0.2+ 0.5- 080404 235 0.4+ 0.2- 160331 F51 0.5- 0.2- 071206 J47 0.1+ 0.1- 080407 215 (3.7+ 0.6+) 160427 703 (3.7+ 1.0-) 071206 J47 0.2+ 0.4- 080408 704 1.8+ 0.5+ 160427 703 (2.5+ 0.7-) 071206 J47 0.2- 0.2+ 080408 704 0.9+ 0.0 160427 703 0.7+ 0.6- 071213 104 1.6- 1.5- 080408 704 (6.0+ 0.9-) 160502 F51 0.3- 0.4- 071213 104 0.2+ 0.0 080408 704 (3.3+ 1.3-) 160502 F51 0.2- 0.3- 071215 673 0.2+ 0.2+ 080408 704 (3.5+ 0.5-) 160502 F51 0.3- 0.3- 071215 673 0.0 0.3+ 080417 704 (2.4+ 0.8-) 160502 F51 0.2- 0.2- 071215 673 0.0 0.2+ 080417 704 0.4- 1.9- 2023/ 071215 673 0.1- 0.3+ 080417 704 0.9+ 0.3- 231117 W62 0.6- 0.9+ 071215 349 0.4- 0.3- 080417 704 (3.8+ 2.5-) 231117 W62 0.1- 1.2+ 071215 349 0.3- 0.2- 080417 704 (5.9+ 3.8-) 231117 W62 0.2+ 1.2+ 071215 349 0.6- 0.3- 080418 704 0.1+ 1.1+ 231117 W62 0.1- 0.5+ 071217 J47 0.5- 1.2- 080418 704 1.0- 0.7- 2024/ 071218 J47 0.1+ 1.1+ 080418 704 1.8+ 1.6+ 240101 G00 0.7- 1.2+ 071218 J47 0.9- 0.5- 080418 704 1.4+ 1.7- 240101 G00 0.6- 0.3+ 071226 213 0.5+ 0.2+ 080426 704 0.2+ 1.0+ 240101 G00 0.9- 0.9- 071226 213 0.2+ 0.4- 080426 704 0.8+ 1.0+ 240116 G00 0.4- 0.8- 071226 213 0.0 0.7- 080426 704 (2.1+ 0.4+) 240116 G00 0.9- 0.0 071229 204 0.1- 0.5- 080426 704 1.7+ 0.7+ 240116 G00 1.0- 0.5- 2008/ 080426 704 0.1- 1.1+ 240131 F52 0.6- 0.2+ 080101 349 0.2+ 0.5- 080506 704 1.3+ 0.1- 240131 F52 0.5- 0.1- 080101 349 0.3+ 0.6- 080506 704 (3.3+ 0.0 ) 240131 F52 1.0- 0.1+ 080101 349 0.0 0.9- 080506 704 1.4+ 0.3+ 240207 I81 0.1+ 0.6+ 080105 704 1.8+ 0.4- 080506 704 (3.2+ 0.5-) 240207 I81 0.4- 0.3+ 080105 704 1.5+ 0.5- 080506 704 1.4+ 0.7- 240217 G96 0.7+ 0.0 080105 704 0.2+ 0.0 2015/ 240217 G96 1.0+ 0.1- 080105 704 0.5+ 1.1- 151229 G40 0.8+ 0.5+ 240217 G96 0.1- 0.0 080105 704 0.2+ 0.1- 151229 G40 0.7+ 0.4+ 240217 G96 0.3- 0.4- 080105 585 0.0 0.3- 151229 G40 0.1+ 0.3+ 240328 215 (0.6- 2.3+) 080105 585 0.0 0.3+ 151229 G40 0.6+ 0.5+ 240328 215 0.2- 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2024 Apr. 30