Nakano Note (Nakano wa Kangaeru noda) NK 5030 414P/STEREO
The following improved orbital elements, by S. Nakano, are from 179 observations 2016 to 2021. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 2.29 arc seconds. The comet will pass 0.88 AU from Jupiter on 2031 Dec. 6 UT. See the previous orbit in NK 4366 (= CBET 4911; same orbit). Epoch = 2021 Jan. 26.0 TT T = 2021 Jan. 25.38596 +/- 0.00007 (m.e.) TT Peri. = 210.73477 +/- 0.00022 Node = 257.79079 +/- 0.00012 (2000.0) Inc. = 23.38316 +/- 0.00022 q = 0.5263701 +/- 0.0000011 AU e = 0.8116927 +/- 0.0000004 a = 2.7952718 +/- 0.0000085 AU n' = 0.21089584 +/- 0.00000096 P = 4.673 +/- 0.0000213 years T = 2016 May 23.17154 TT Epoch = 2016 May 12.0 TT Peri. = 210.65606 e = 0.8103834 Node = 257.84527 (2000.0) a = 2.7992625 AU Inc. = 23.38934 n'= 0.21044501 q = 0.5307867 AU P = 4.683 years The predicted orbit for the 2025 return is as follows: T = 2025 Sept.26.32675 TT Epoch = 2025 Oct. 12.0 TT Peri. = 210.70894 e = 0.8122971 Node = 257.81690 (2000.0) a = 2.7924797 AU Inc. = 23.40620 n'= 0.21121222 q = 0.5241566 AU P = 4.666 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2016/ 160512 C49 2.4+ 1.6- 210108 204 0.3+ 0.3+ 160511 C49 (2.8- 8.0-) 160512 C49 5.9- 0.2- 210108 204 0.3+ 0.0 160511 C49(11.2+ 3.3-) 160512 C49 (1.8- 9.1-) 210108 204 0.4+ 0.4+ 160511 C49 2.3+ 1.6- 160512 C49 3.5+ 5.0+ 210109 V37 0.3- 0.2- 160511 C49 (8.2- 0.1+) 160512 C49 (9.6- 2.3-) 210109 V37 0.5- 0.1+ 160511 C49 (4.0+ 13.1+) 160512 C49 (0.4+ 7.4+) 210109 V37 0.1+ 0.0 160511 C49 (8.9+ 1.3+) 160512 C49 5.0- 0.4- 210109 V37 0.1+ 0.2+ 160511 C49 6.2+ 4.0- 160512 C49 4.1- 0.5+ 210109 H06 0.5- 0.9- 160511 C49 2.6+ 2.6- 160512 C49 1.4- 2.5- 210109 H06 0.8- 0.4- 160511 C49 1.4+ 1.1- 160512 C49 2.2+ 5.8+ 210109 H06 0.1- 0.4- 160511 C49 (9.0- 9.2+) 160512 C49 3.9- 3.6- 210109 Q11 0.1- 0.1- 160511 C49 0.9- 1.0+ 160512 C49 (5.0- 8.9+) 210109 349 0.5- 0.4- 160511 C49 (8.1- 10.3-) 160512 C49 1.0+ 4.0+ 210109 Q11 0.2- 0.4- 160511 C49 2.6- 3.7+ 160512 C49 0.6+ 1.9- 210109 349 0.8- 0.4- 160511 C49 6.1- 1.3- 160512 C49 4.8+ 3.2+ 210109 Q11 0.2- 0.1- 160511 C49 2.9- 0.5+ 160512 C49 3.1- 2.4+ 210109 349 0.3- 0.2- 160511 C49 2.4+ 2.0- 160512 C49 2.8- 0.6- 210109 349 0.6- 0.4+ 160511 C49 2.5+ 3.9- 160512 C49 2.8- 2.6- 210109 349 0.9- 0.1- 160511 C49 5.0+ 1.8- 160512 C49 1.2+ 2.4- 210110 349 0.6- 0.2+ 160511 C49 5.7+ 0.8+ 160512 C49 2.2+ 3.9- 210110 349 0.4- 0.0 160511 C49 (3.9- 7.7-) 160512 C49 (9.0- 1.8+) 210110 349 0.4- 0.0 160511 C49 (8.3+ 3.8+) 160512 C49 2.6+ 1.6+ 210110 349 0.5- 0.2- 160511 C49(14.6+ 0.1-) 160512 C49 0.1+ 3.8- 210110 349 0.8- 0.3- 160511 C49 3.7+ 4.0- 160513 C49 (6.8+ 7.1+) 210110 A71 0.2+ 0.1+ 160511 C49 1.7+ 4.1- 160513 C49 (8.2- 6.3+) 210110 A71 0.2+ 0.2- 160511 C49 5.2- 4.6- 160513 C49 1.7+ 1.9- 210110 A71 0.1+ 0.1- 160511 C49 3.5+ 3.1+ 160513 C49 1.3+ 1.1+ 210110 204 0.8+ 0.5- 160511 C49 3.0- 0.7- 160513 C49 1.5+ 4.3- 210110 204 0.1+ 0.0 160511 C49 4.2- 3.1- 160513 C49 4.3+ 1.0- 210110 204 0.1- 0.2- 160511 C49 (9.8- 3.1+) 160513 C49 0.3- 5.2- 210110 204 0.1+ 0.0 160511 C49 4.1- 1.6+ 160513 C49 3.3+ 3.3- 210110 204 0.1- 0.4- 160511 C49 2.0+ 2.8- 160513 C49 (7.4+ 5.7+) 210111 A71 0.1+ 0.5+ 160512 C49 1.4- 1.5- 160513 C49 1.4+ 0.2+ 210111 A71 1.1+ 0.1- 160512 C49 0.3- 2.4+ 160513 C49 (8.1- 4.5-) 210111 A71 0.5- 1.0- 160512 C49 2.5+ 2.8+ 160513 C49 0.7- 5.2- 210111 A77 0.7+ 0.6- 160512 C49 2.5+ 2.8+ 160513 C49(19.3+ 8.8+) 210111 A77 1.0+ 1.1- 160512 C49 3.9+ 5.0- 160513 C49 (2.5+ 21.9+) 210111 A77 0.8+ 1.6- 160512 C49 1.8+ 3.6- 160513 C49 (5.1+ 15.2+) 210111 Z10 0.7+ 0.4+ 160512 C49 0.6+ 3.2- 160513 C49 (6.8- 13.4+) 210113 H06 0.8- 0.8- 160512 C49 3.5+ 3.2- 160513 C49 3.9+ 6.9+ 210113 349 0.3+ 0.6+ 160512 C49 (1.5- 11.3+) 160513 C49 (6.9+ 16.4+) 210113 349 0.2+ 0.5+ 160512 C49 2.0- 0.2+ 160513 C49(19.9+ 40.2+) 210114 247 0.5+ 0.5+ 160512 C49 1.1+ 0.3- 160513 C49 (4.8- 14.4+) 210114 247 0.3+ 0.2- 160512 C49 4.5- 3.6+ 160513 C49 (5.6- 10.9+) 210114 247 0.5+ 0.4+ 160512 C49 1.0+ 2.8+ 160513 C49 (0.4- 14.7+) 210114 A77 0.9+ 0.1+ 160512 C49 1.2+ 3.1+ 160513 C49(13.9+ 2.3+) 210114 A77 1.3+ 0.1- 160512 C49 1.6+ 2.3- 160513 C49(10.8+ 19.2+) 210114 A77 0.4+ 0.5- 160512 C49 6.3- 3.5+ 160513 C49 (2.9+ 11.6-) 210115 C53 (1.7- 4.9-) 160512 C49 1.7- 2.8+ 160513 C49(11.8- 2.7-) 210115 C53 (1.1- 4.6-) 160512 C49 1.4- 0.7+ 160513 C49 4.6- 4.6+ 210115 C53 (1.0- 5.4-) 160512 C49 1.7- 1.0+ 160513 C49 (8.5- 16.6+) 210116 A77 1.2+ 0.7- 160512 C49 1.8+ 3.8+ 160513 C49 (5.6- 24.9-) 210116 A77 1.7+ 1.2- 160512 C49 0.2+ 1.2- 160513 C49 (3.1- 10.5+) 210116 A77 1.7+ 1.1- 160512 C49 4.0+ 0.0 160513 C49(17.7- 2.9-) 210116 G40 0.5- 0.0 160512 C49 (9.4+ 1.4+) 160513 C49 6.0+ 1.6+ 210116 G40 1.3+ 0.0 160512 C49 (9.6+ 4.6-) 160513 C49 5.9- 2.7+ 210117 C53 0.4+ 1.5- 160512 C49 0.2- 1.6+ 160513 C49(18.0- 13.2+) 210117 C53 (0.9+ 2.0-) 160512 C49 (7.0- 0.4-) 2020/ 210117 C53 (2.2+ 3.2-) 160512 C49 0.9- 6.1+ 201219 G96 1.2- 0.6+ 210117 C53(0.19+ 1.13-) 160512 C49 0.4+ 0.7+ 201219 G96 1.2- 0.5- 210117 C53(0.19+ 1.13-) 160512 C49 2.4- 0.6+ 201219 G96 1.4- 0.1- 210117 C53(0.19+ 1.13-) 160512 C49 3.9- 0.6+ 2021/ 210117 C53(0.18+ 1.14-) 160512 C49 2.7- 3.6+ 210104 I41 0.5- 0.0 210117 C53(0.18+ 1.14-) 160512 C49 2.5+ 0.5+ 210104 I41 1.0- 0.2- 210117 G40 0.2+ 0.1- 160512 C49 0.9- 2.5+ 210104 I41 1.0- 0.0 210117 G40 1.4+ 0.3+ 160512 C49 4.5- 1.7- 210104 I41 0.7- 0.2- 210118 349 1.3+ 0.7+ 160512 C49 4.3- 1.2- 210105 I41 0.4- 0.6- 210118 349 1.1+ 1.0+ 160512 C49 3.9- 1.3- 210105 I41 0.5- 0.6- 210118 349 0.7+ 1.2+ 160512 C49 1.7+ 5.1+ 210105 I41 0.2- 0.4- 210118 A77 (3.0+ 0.9+) 160512 C49 (3.2+ 7.2+) 210105 I41 0.8- 1.0- 210118 A77 (3.6+ 0.7+) 160512 C49 1.4+ 3.0+ 210107 K88 0.8+ 0.8+ 210118 A77 (0.7+ 3.5-) 160512 C49 3.2- 2.4- 210107 K88 0.9- 0.1- 210119 A77 (2.2+ 0.5+) 160512 C49 1.3+ 6.2+ 210107 K88 0.0 0.4- 210119 A77 1.7+ 0.3+ 160512 C49 2.8- 3.8+ 210107 A71 1.1- 0.2- 210119 A77 (2.2+ 1.5-) 160512 C49 5.2+ 4.1+ 210107 A71 0.7- 0.2- 210325 C51 0.6+ 0.1+ 160512 C49 (4.9- 8.4+) 210108 H06 0.6- 0.8- 210325 C51 0.6+ 0.3+ 160512 C49 0.4+ 5.2+ 210108 H06 0.4+ 0.5- 210325 C51 0.9+ 0.0 160512 C49 6.0- 0.9+ 210108 K88 0.3- 0.5- 210325 C51 0.7+ 0.3+ 160512 C49 0.8+ 2.5- 210108 K88 0.4- 0.6- 210325 C51 1.0- 0.0 160512 C49 (6.7- 7.3+) 210108 G06 (0.8- 2.1-) 210325 C51 0.4+ 0.3+ 160512 C49 0.3- 5.7- 210108 G06 0.6- 0.5- 210325 C51 0.4+ 0.1+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2023 June 3