Nakano Note (Nakano wa Kangaeru noda) NK 4753 363P/Lemmon
The following improved orbital elements, by S. Nakano, are from 93 observations 2011 to 2018. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.50 arc second. The comet has passed 0.45 AU from Jupiter on 2020 June 5 UT. See the previous orbits in NK 2208, NK 2219, NK 2255 and NK 3473. Epoch = 2018 Mar. 23.0 TT T = 2018 Mar. 22.92182 +/- 0.00024 (m.e.) TT Peri. = 315.28078 +/- 0.00017 Node = 169.91719 +/- 0.00014 (2000.0) Inc. = 3.97538 +/- 0.00001 q = 1.5078638 +/- 0.0000008 AU e = 0.5570650 +/- 0.0000002 a = 3.4042553 +/- 0.0000024 AU n' = 0.15691732 +/- 0.00000016 P = 6.281 +/- 0.0000065 years T = 2011 Dec. 8.70152 TT Epoch = 2011 Dec. 25.0 TT Peri. = 315.12548 e = 0.5572811 Node = 169.99793 (2000.0) a = 3.4025991 AU Inc. = 3.97273 n'= 0.15703191 q = 1.5063948 AU P = 6.276 years The predicted orbit for the 2024 return is as follows: T = 2024 Nov. 13.19739 TT Epoch = 2024 Nov. 26.0 TT Peri. = 340.74925 e = 0.5185564 Node = 146.75878 (2000.0) a = 3.5743834 AU Inc. = 5.39396 n'= 0.14584864 q = 1.7208639 AU P = 6.758 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2011/ 120202 703 (2.5- 0.4-) 171116 G96 0.5- 0.0 111103 G96 0.2+ 0.0 120203 H06 0.3- 0.7+ 171118 F51 0.2- 0.1- 111103 G96 0.5+ 0.0 120203 H06 1.6- 1.1+ 171118 F51 0.1- 0.1- 111103 G96 0.2- 0.1+ 120203 H06 (2.4- 1.2+) 171118 F51 0.1- 0.1+ 111103 G96 0.2- 0.2- 120203 H06 (2.4- 1.1+) 171119 J04 0.1- 0.3- 111104 H36 (2.0+ 0.4-) 120204 215 0.9- 0.6+ 171119 J04 0.0 0.1- 111104 H36 1.2- 0.1+ 120204 215 0.6- 0.4+ 171119 J04 0.2+ 0.0 111104 H36 0.2- 1.1+ 120204 215 0.2- 0.0 171119 Z84 0.3- 0.3+ 111105 B18 0.4- 0.8- 120219 691 (3.2- 0.9+) 171119 Z84 0.3- 0.2+ 111105 B18 0.5+ 0.1- 120219 691 (4.0- 1.9+) 171119 Z84 0.2- 0.2+ 111105 B18 0.1- 0.3- 120219 691 (4.4- 1.2+) 171125 U69 0.7- 0.1+ 111105 B18 0.0 0.5- 120219 349 (2.7- 1.0+) 171125 U69 0.5- 0.3+ 2012/ 120219 349 (3.2- 0.4+) 171125 U69 0.2- 0.2+ 120201 703 (2.6- 0.5+) 120222 H06 0.5+ 0.3- 171207 F51 0.1- 0.0 120201 703 0.6- 0.3- 120222 H06 0.0 0.1- 171207 F51 0.3+ 0.1- 120201 703 1.4- 0.4+ 120227 A71 0.3- 0.0 171207 F51 0.0 0.0 120201 703 (2.6- 0.4-) 120227 A71 0.2+ 0.4- 171215 215 0.9- 0.6- 120201 703 (2.9- 0.5-) 120228 F51 0.4+ 0.0 171215 215 0.1+ 0.3- 120201 703 1.1- 0.3- 120228 F51 0.5+ 0.1- 171215 215 0.3+ 0.5- 120201 703 1.4- 0.6+ 120228 F51 0.5+ 0.0 171216 G96 0.5+ 0.5+ 120201 703 0.2- 0.0 120321 703 (3.9- 0.9+) 171216 G96 0.4- 0.2+ 120201 G96 0.2+ 0.1+ 120321 703 (3.7- 0.2-) 171216 G96 0.4+ 0.5+ 120201 G96 0.1- 0.2- 120321 703 (2.9- 0.1-) 171216 G96 0.1+ 0.3- 120201 G96 0.1+ 0.1- 120321 703 (2.3- 1.0-) 171222 F51 0.1+ 0.0 120201 G96 0.2- 0.2+ 120325 704 0.7- 1.1+ 171222 F51 0.2+ 0.0 120201 F65 0.6+ 0.1- 120325 704 0.1+ 0.5+ 171222 F51 0.3+ 0.3+ 120201 F65 0.6+ 0.2- 120325 704 (1.3- 2.3+) 2018/ 120201 F65 0.7+ 0.1- 120330 G96 (2.5- 0.3+) 180113 F51 0.4+ 0.2- 120202 807 0.4+ 0.0 120330 G96 (2.2- 0.1-) 180113 F51 0.2+ 0.1+ 120202 807 0.1+ 0.2- 120330 G96 1.5- 0.2+ 180113 F51 0.2+ 0.0 120202 807 0.0 0.1- 120330 G96 1.8- 0.1+ 180114 G96 0.3+ 0.3- 120202 807 0.1+ 0.2- 2017/ 180114 G96 0.4+ 0.3+ 120202 807 0.4+ 0.3- 171027 F51 0.3- 0.0 180114 G96 0.5+ 0.2+ 120202 G96 0.8- 0.1+ 171027 F51 0.1- 0.2+ 180114 G96 0.0 0.4- 120202 G96 0.9- 0.8+ 171027 F51 0.3- 0.1- 180304 H06 0.6- 0.0 120202 G96 0.9- 0.4+ 171027 F51 0.0 0.2+ 180304 H06 0.0 0.2+ 120202 G96 1.8- 0.5+ 171116 G96 0.1- 0.0 180514 H06 0.9- 0.7- 120202 703 0.2+ 0.7- 171116 G96 0.2- 0.2- 180514 H06 1.3- 0.6- 120202 703 0.5- 1.0- 171116 G96 0.2- 0.2+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2022 June 16