Nakano Note (Nakano wa Kangaeru noda) NK 5032 P/2019 Y3 (Catalina)
The following improved orbital elements, by S. Nakano, are from 82 observations 2019 Dec. 17 to 2020 Jan. 27. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.60 arc second. See an orbit in CBET 4711. Epoch = 2019 Dec. 23.0 TT T = 2019 Dec. 13.45929 +/- 0.00055 (m.e.) TT Peri. = 2.26633 +/- 0.00097 Node = 139.38296 +/- 0.00294 (2000.0) Inc. = 24.63535 +/- 0.00073 q = 0.9120002 +/- 0.0000254 AU e = 0.6957704 +/- 0.0000751 a = 2.9977367 +/- 0.0007448 AU n' = 0.18989513 +/- 0.00007076 P = 5.190 +/- 0.0019343 years (+/- 0.71 day) The predicted orbit for the 2025 return is as follows: Delta-T mightbe more large than m.e. of Period. T = 2025 Mar. 2.99392 TT Epoch = 2025 Feb. 14.0 TT Peri. = 2.54814 e = 0.6912690 Node = 139.30689 (2000.0) a = 3.0156715 AU Inc. = 24.58187 n'= 0.18820365 q = 0.9310312 AU P = 5.237 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 191224 L01 (2.0+ 0.4-) 200102 204 0.3+ 0.2- 191217 703 (4.2- 1.6+) 191224 L01 0.5+ 0.1- 200102 204 0.4+ 0.6- 191217 703 (3.9- 0.9+) 191224 L01 0.5- 0.7+ 200102 033 0.2- 0.6- 191217 703 1.4- 0.0 191224 L01 0.1+ 0.0 200102 033 0.3- 0.5- 191217 703 0.0 0.2- 191224 J04 0.6- 0.3+ 200102 033 0.2- 0.1- 191218 807 0.9- 0.3+ 191224 J04 0.8- 0.6- 200102 033 0.3+ 0.5- 191218 807 0.8- 0.2+ 191226 H06 0.4+ 0.7+ 200104 Q11 0.4- 0.5+ 191218 807 0.3- 0.0 191226 H06 0.3+ 0.8+ 200104 Q11 0.4- 0.3+ 191218 H06 1.0+ 0.8+ 191227 033 0.5+ 0.1+ 200104 Q11 0.2- 0.5+ 191218 H06 1.0+ 1.0+ 191227 033 0.4+ 0.4+ 200106 A71 (2.9+ 0.6-) 191218 H06 1.0+ 1.3+ 191228 G40 0.1- 0.3+ 200106 A71 1.5+ 0.5- 191220 033 0.1+ 0.0 191228 G40 0.4+ 0.2+ 200106 A71 0.9- 0.2- 191220 033 0.1+ 0.2- 191228 Q11 0.1+ 0.5+ 200106 C95 0.8- 0.5- 191220 033 0.1+ 0.1- 191228 Q11 0.1- 0.5+ 200106 C95 0.2+ 0.3- 191220 033 0.6+ 0.6- 191228 Q11 0.1+ 0.6+ 200106 691 1.2+ 0.2- 191220 033 0.8+ 0.7- 191229 033 0.4+ 0.0 200106 691 0.0 0.8+ 191220 G40 0.5- 0.2- 191229 033 0.6+ 0.1- 200106 691 0.7+ 0.3- 191220 G40 0.5- 0.5+ 191229 033 0.9+ 0.0 200107 I52 0.5+ 1.0- 191220 I52 0.6+ 0.6- 191229 G40 0.5- 0.2+ 200107 I52 0.6+ 1.0- 191220 V11 0.0 0.7- 191229 G40 0.2+ 0.9+ 200107 I52 0.6+ 1.6- 191220 I52 1.4+ 0.6+ 191231 Q11 0.3+ 0.4+ 200107 703 (3.9- 0.6+) 191220 I52 0.5- 0.5- 191231 Q11 0.2+ 0.5+ 200107 703 (4.4- 0.0 ) 191220 I52 (4.3+ 1.7-) 191231 Q11 0.3+ 0.5+ 200107 703 1.7- 0.9+ 191220 V11 0.6- 0.1- 2020/ 200108 A77 (2.5+ 0.4+) 191221 033 0.4- 0.4- 200101 033 0.3- 0.2+ 200108 A77 1.4+ 1.0+ 191221 033 0.9- 0.2- 200101 033 0.5- 0.1+ 200108 A77 0.8+ 1.4+ 191221 033 0.6- 0.4- 200101 033 1.0- 0.1+ 200108 H06 1.0- 0.2- 191221 J04 0.1+ 0.1+ 200101 Q11 0.9- 0.3+ 200108 H06 0.1+ 0.4- 191223 J04 0.7+ 0.1- 200101 Q11 1.0- 0.3+ 200127 H06 0.1- 0.1+ 191223 J04 0.5+ 0.0 200101 Q11 0.9- 0.2+ 200127 H06 0.2- 0.2- 191223 J04 0.0 0.2- 200102 204 0.1+ 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2023 June 9