Nakano Note (Nakano wa Kangaeru noda) NK 3524 P/2017 S2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 60 observations 2017 Aug. 22 to Nov. 17. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.35 arc second. No correction required for an orbit in HICQ 2018. Epoch = 2017 Sept. 4.0 TT T = 2017 Aug. 29.30020 +/- 0.01648 (m.e.) TT Peri. = 305.96238 +/- 0.00373 Node = 62.43033 +/- 0.00052 (2000.0) Inc. = 12.68262 +/- 0.00015 q = 3.6143429 +/- 0.0000406 AU e = 0.8230918 +/- 0.0000057 a = 20.4306128 +/- 0.0006989 AU n' = 0.01067289 +/- 0.00000055 P = 92.347 +/- 0.0047376 years (+/- 1.73 days) The predicted orbit for the 2111 return is as follows: T = 2111 Feb. 28.83314 TT Epoch = 2111 Mar. 16.0 TT Peri. = 306.06471 e = 0.8236433 Node = 62.34788 (2000.0) a = 20.5879739 AU Inc. = 12.65894 n'= 0.01055076 q = 3.6308270 AU P = 93.416 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 170918 K93 0.0 0.0 170929 F51 0.0 0.1+ 170822 F51 0.1- 0.0 170918 691 0.3- 0.2+ 170929 F51 0.0 0.1- 170822 F51 0.1+ 0.0 170918 691 0.1+ 0.0 171012 Q62 0.6+ 0.7+ 170822 F51 0.0 0.1+ 170918 691 0.4- 0.1- 171012 Q62 0.1+ 0.4+ 170822 F51 0.1- 0.1- 170920 I52 0.9- 0.2- 171014 215 0.0 0.3+ 170822 F51 0.0 0.1- 170920 I52 0.8- 0.1+ 171014 215 0.4+ 0.2+ 170822 F51 0.1+ 0.0 170920 I52 1.9- 0.7+ 171014 215 0.1- 0.1- 170822 F51 0.0 0.0 170925 F51 0.1+ 0.0 171016 461 0.9- 0.2- 170916 F51 0.0 0.1+ 170925 F51 0.0 0.0 171016 461 0.4- 0.4+ 170916 F51 0.0 0.1+ 170925 F51 0.2+ 0.0 171016 461 0.4- 0.4+ 170916 F51 0.1+ 0.1+ 170925 F51 0.0 0.0 171021 F51 0.1- 0.0 170916 F51 0.0 0.0 170926 F51 0.1- 0.0 171021 F51 0.3- 0.0 170917 568 0.1+ 0.0 170926 F51 0.2- 0.1- 171021 F51 0.0 0.1- 170917 568 0.0 0.0 170926 F51 0.1- 0.1- 171117 F51 0.1- 0.1+ 170917 568 0.1+ 0.0 170926 F51 0.1- 0.0 171117 F51 0.2- 0.1+ 170917 Q62 0.8- 1.2- 170929 F51 0.2+ 0.1+ 171117 F51 0.0 0.1- 170917 Q62 1.0- 0.8- 170929 F51 0.2+ 0.1+ 171117 F51 0.3+ 0.2- 170917 Q62 1.3- 0.8- 170929 F51 0.1+ 0.1+ 171117 F51 0.0 0.1+ 170918 K93 0.2+ 0.2- 170929 F51 0.1- 0.1- 171117 F51 0.1+ 0.0 170918 K93 0.1+ 0.3- 170929 F51 0.3+ 0.1+ 170918 K93 0.2+ 0.3- 170929 F51 0.2+ 0.0 ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2018 Jan. 4