Nakano Note (Nakano wa Kangaeru noda) NK 3564 P/2017 U5 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 85 observations 2017 Oct. 30 to 2018 Feb. 5. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.44 arc second. Epoch = 2018 Jan. 2.0 TT T = 2017 Dec. 19.11578 +/- 0.09192 (m.e.) TT Peri. = 262.15229 +/- 0.01459 Node = 163.11487 +/- 0.00142 (2000.0) Inc. = 18.95660 +/- 0.00011 q = 4.3267766 +/- 0.0000624 AU e = 0.7445390 +/- 0.0000187 a = 16.9371351 +/- 0.0012648 AU n' = 0.01413983 +/- 0.00000158 P = 69.704 +/- 0.0078073 years (+/- 2.85 days) The predicted orbit for the 2087 return is as follows: T = 2087 Oct. 7.11544 TT Epoch = 2087 Oct. 7.0 TT Peri. = 262.20991 e = 0.7438457 Node = 162.91967 (2000.0) a = 16.9605574 AU Inc. = 18.96674 n'= 0.01411055 q = 4.3445200 AU P = 69.849 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 171111 Q62 1.1- 0.0 171122 I52 0.6- 0.1+ 171030 F51 0.1- 0.0 171111 Q62 1.1- 0.7+ 171125 G96 0.1- 0.1- 171030 F51 0.1+ 0.0 171112 691 0.1- 0.0 171125 G96 0.2- 0.6- 171030 F51 0.1+ 0.1- 171112 711 0.4- 0.3- 171125 G96 0.4+ 0.2+ 171030 F51 0.4+ 0.2+ 171112 711 0.2- 0.2- 171125 G96 0.1- 0.2+ 171101 807 0.1+ 0.1- 171112 711 0.4- 0.1- 171126 291 0.4- 0.2+ 171101 807 0.0 0.1- 171112 691 0.4- 0.0 171126 291 0.7- 0.2+ 171101 807 0.0 0.2- 171112 691 0.2- 0.1- 171126 291 1.1- 0.2- 171108 F51 0.0 0.1- 171114 I52 0.3- 0.1+ 171127 V06 0.1- 0.4+ 171108 F51 0.0 0.0 171114 I52 0.1- 1.1- 171127 V06 0.3+ 0.1- 171108 F51 0.2- 0.1+ 171114 I52 0.5- 0.2- 171127 V06 0.5+ 0.2- 171109 H21 0.0 0.0 171115 691 0.0 0.4- 171127 V06 0.5+ 0.8- 171109 H21 0.3- 0.1+ 171115 691 0.5- 0.1+ 171214 F51 0.1+ 0.2- 171109 H21 0.1- 0.1- 171115 691 0.5- 0.5- 171214 F51 0.1+ 0.3- 171110 W87 0.1+ 0.3- 171115 I52 0.4- 0.5+ 171214 F51 0.2+ 0.2+ 171110 W87 0.1- 0.4- 171115 I52 0.0 0.2- 171214 F51 0.2- 0.1+ 171110 W87 0.2- 0.3- 171115 I52 0.6- 0.2- 171223 G96 0.4- 0.5+ 171110 W87 0.3- 0.6- 171116 691 0.7- 0.3+ 171223 G96 0.5- 0.2+ 171110 H01 0.3+ 0.2- 171116 691 0.3+ 0.3- 171223 G96 0.6- 0.2+ 171110 H01 0.2+ 0.2- 171116 691 0.0 0.0 171223 G96 1.4- 0.8+ 171110 H01 0.3+ 0.2- 171117 807 0.5+ 0.3- 171224 F51 0.0 0.0 171110 H01 0.3+ 0.1- 171117 291 0.6+ 0.6+ 171224 F51 0.1- 0.1- 171110 691 1.5- 0.2- 171117 291 0.3- 0.2+ 171224 F51 0.2+ 0.0 171110 691 0.0 0.1- 171118 807 0.6+ 0.2- 171224 F51 0.2+ 0.1- 171110 691 0.2+ 0.6- 171119 F51 0.0 0.0 2018/ 171111 711 0.4- 1.7+ 171119 F51 0.3- 0.3+ 180205 G96 0.2+ 0.8- 171111 711 0.1- 0.8+ 171119 F51 0.1- 0.2+ 180205 G96 0.4+ 0.2+ 171111 711 0.7- 0.8+ 171122 I52 0.2- 0.4+ 180205 G96 0.4- 0.3+ 171111 Q62 1.2- 0.1+ 171122 I52 0.1- 0.1- 180205 G96 0.8- 1.3+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2018 Mar. 11