Nakano Note (Nakano wa Kangaeru noda) NK 3562 P/2017 U3 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 59 observations 2016 Oct. 30 to 2017 Nov. 22. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.59 arc second. Orbit depends on one night observations in 2016. See an orbit in HICQ 2018. Epoch = 2019 Apr. 27.0 TT T = 2019 Apr. 20.81303 +/- 0.16176 (m.e.) TT Peri. = 297.35544 +/- 0.02433 Node = 165.12243 +/- 0.00155 (2000.0) Inc. = 15.90827 +/- 0.00038 q = 4.4442861 +/- 0.0005462 AU e = 0.0993523 +/- 0.0001422 a = 4.9345446 +/- 0.0009872 AU n' = 0.08991527 +/- 0.00002698 P = 10.962 +/- 0.0032894 years (+/- 1.20 days) The predicted orbit for the 2030 return is as follows: T = 2030 Mar. 22.88017 TT Epoch = 2030 Apr. 9.0 TT Peri. = 297.17913 e = 0.0991840 Node = 165.01268 (2000.0) a = 4.9091289 AU Inc. = 15.92749 n'= 0.09061444 q = 4.4222218 AU P = 10.877 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2016/ 171029 711 1.6- 0.3- 171110 691 1.1- 0.4+ 161030 G96 0.2+ 0.1- 171029 691 0.3- 0.4- 171110 691 0.6- 0.7+ 161030 G96 0.0 0.3+ 171029 691 0.0 0.0 171110 691 0.4- 0.5+ 161030 G96 0.3+ 0.2- 171029 691 0.1- 0.3+ 171111 711 0.4- 0.1- 161030 G96 0.6- 0.2+ 171029 H01 0.1- 0.1+ 171111 711 0.4- 0.3+ 2017/ 171029 H01 0.3+ 0.1- 171111 711 0.1- 0.0 171001 F51 0.2+ 0.0 171029 H01 0.2+ 0.0 171112 291 0.8- 1.0+ 171001 F51 0.3+ 0.0 171029 H01 0.3+ 0.1+ 171112 291 1.5- 0.5+ 171019 F51 1.3- 0.4+ 171029 F51 0.6+ 0.2- 171112 291 0.6- 0.5+ 171019 F51 1.2- 0.1- 171029 F51 0.7+ 0.1- 171112 711 0.6- 0.0 171019 F51 1.0- 0.1+ 171029 F51 0.7+ 0.1- 171112 711 0.1+ 0.1- 171024 G96 0.3+ 0.7+ 171029 F51 0.5+ 0.2- 171112 711 0.1- 0.1- 171024 G96 1.1- 0.5- 171030 711 1.1- 0.1- 171122 G96 0.7- 0.1+ 171024 G96 1.0- 0.4- 171030 711 0.9- 0.2+ 171122 G96 0.3+ 0.4+ 171024 G96 1.5- 0.3+ 171030 711 0.3- 0.3+ 171122 G96 1.7- 0.6+ 171028 F51 0.5+ 0.2- 171030 H06 0.4+ 0.1+ 171122 G96 1.8- 0.3+ 171028 F51 0.4+ 0.1- 171030 695 0.2+ 0.3+ 171122 215 1.1- 0.8- 171028 F51 0.5+ 0.2- 171030 H06 0.4+ 0.2+ 171122 215 0.4- 0.6+ 171028 F51 0.9+ 0.1- 171030 H06 0.1+ 0.0 171122 215 0.1+ 1.4+ 171029 711 0.8- 0.2- 171030 695 0.3+ 0.5+ 171029 711 0.5- 0.0 171030 695 0.3+ 0.3+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2018 Mar. 11

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