Nakano Note (Nakano wa Kangaeru noda) NK 5123 P/2023 T1 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 103 observations 2023 July 16 to Nov. 17. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.36 arc second. The comet has passed 0.20 AU, 0.16 AU and 0.13 AU from Jupiter on 1972 May 25, 2007 Oct. 7 and 2019 May 16, respectively. Orbit at 1971 was T= 1971 12 30, q= 5.01 AU, e= 0.51, Peri.= 289.9, Node= 327.2, i= 0.6, a= 10.16 AU, P= 32.4 years, but still uncertainty. See an orbit in CBET 5302. Epoch = 2024 May 10.0 TT T = 2024 May 22.87728 +/- 0.02613 (m.e.) TT Peri. = 202.85482 +/- 0.00885 Node = 249.57559 +/- 0.00042 (2000.0) Inc. = 6.61187 +/- 0.00009 q = 2.8173981 +/- 0.0001264 AU e = 0.3338970 +/- 0.0000431 a = 4.2296736 +/- 0.0003328 AU n' = 0.11330362 +/- 0.00001337 P = 8.699 +/- 0.0010266 years (+/- 0.37 day) The predicted orbit for the 2033 return is as follows: T = 2033 Jan. 31.43953 TT Epoch = 2033 Feb. 12.0 TT Peri. = 202.70905 e = 0.3322709 Node = 249.57274 (2000.0) a = 4.2393187 AU Inc. = 6.60332 n'= 0.11291717 q = 2.8307166 AU P = 8.729 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2023/ 231013 T14 0.1+ 0.0 231104 G96 0.1+ 0.1+ 230716 F52 0.1+ 0.1+ 231013 T14 0.1+ 0.0 231104 G96 0.1+ 0.2+ 230716 F52 0.1- 0.0 231013 T14 0.2+ 0.0 231104 F51 0.3+ 0.1- 230716 F52 0.0 0.1- 231013 T14 0.2+ 0.0 231104 F51 0.2+ 0.0 230716 F52 0.0 0.1+ 231014 A77 1.3- 0.6- 231104 F51 0.2+ 0.1- 230915 G96 0.2- 0.1- 231014 A77 0.5+ 0.5+ 231104 F51 0.1+ 0.2- 230915 G96 0.2- 0.1+ 231014 A77 0.7+ 0.2- 231108 F51 0.1+ 0.1- 230915 G96 0.0 0.1+ 231015 F51 0.0 0.0 231108 F51 0.2+ 0.1+ 230915 G96 0.4- 0.1- 231015 F51 0.1+ 0.0 231108 F51 0.3+ 0.1- 230925 G96 0.4- 0.6- 231015 F51 0.1+ 0.0 231108 F51 0.1+ 0.2- 230925 G96 0.6- 0.3- 231015 F51 0.1+ 0.0 231108 215 1.3- 0.1+ 230925 G96 0.7- 0.2- 231015 L38 0.4+ 0.2+ 231108 215 1.1- 0.1- 230925 G96 0.1+ 0.6- 231015 L38 0.4- 0.1+ 231108 215 0.8- 0.4- 231009 F52 0.0 0.1- 231017 G00 0.8+ 0.4+ 231109 O18 0.0 0.2- 231009 F52 0.1- 0.0 231017 G00 0.9- 0.4+ 231109 O18 0.1+ 0.1- 231009 F52 0.1+ 0.0 231017 G00 1.0- 0.5- 231109 O18 0.0 0.2- 231009 F52 0.1+ 0.0 231018 V00 0.2+ 0.1+ 231110 O18 0.1+ 0.1- 231010 X09 0.1- 0.4- 231018 V00 0.1+ 0.1+ 231110 O18 0.1+ 0.0 231010 X09 0.1- 0.3+ 231018 V00 0.1+ 0.1- 231110 O18 0.0 0.1- 231010 X09 0.2- 0.2- 231018 V00 0.1+ 0.0 231111 F52 0.2+ 0.2- 231010 F52 0.1+ 0.2+ 231020 V00 0.2+ 0.1- 231111 F52 0.3+ 0.1- 231010 F52 0.0 0.1- 231020 V00 0.1+ 0.0 231111 F52 0.2+ 0.1- 231010 C10 0.4+ 0.4+ 231020 V00 0.1+ 0.1- 231111 F52 0.0 0.2- 231010 C10 0.4- 0.3- 231020 V00 0.1+ 0.0 231112 Q11 0.3+ 0.2- 231010 C10 0.5- 1.9- 231021 F51 0.2+ 0.1- 231112 Q11 0.2+ 0.1- 231011 204 0.0 0.1+ 231021 F51 0.1+ 0.1+ 231112 Q11 0.3+ 0.2- 231011 204 0.2- 0.1+ 231021 F51 0.2+ 0.1- 231113 O18 0.0 0.0 231011 U94 0.7- 0.6- 231021 F51 0.2+ 0.1+ 231113 O18 0.1+ 0.0 231011 U94 1.0- 0.2- 231026 658 0.6- 0.0 231113 O18 0.3+ 0.0 231012 W62 0.3+ 0.2- 231026 658 0.6- 0.1- 231117 658 0.2- 0.3+ 231012 W62 0.5+ 0.1- 231026 658 0.5- 0.2- 231117 658 0.2- 0.2+ 231012 W62 0.5+ 0.4- 231026 658 0.5- 0.2- 231117 658 0.2- 0.2+ 231012 Y89 0.2+ 0.5- 231026 658 0.5- 0.1- 231117 658 0.1- 0.2+ 231012 Y89 0.1- 1.7+ 231104 G96 0.0 0.1+ 231117 658 0.1- 0.0 231012 Y89 0.7- 0.3- 231104 G96 0.3- 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2023 Dec. 3