Nakano Note (Nakano wa Kangaeru noda) NK 3983 P/2014 R5 (Lemmon-PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 107 observations 2014 Sept. 7 to Nov. 18. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.47 arc second. Epoch = 2014 July 2.0 TT T = 2014 June 17.50354 +/- 0.02419 (m.e.) TT Peri. = 213.85440 +/- 0.01034 Node = 126.53979 +/- 0.00499 (2000.0) Inc. = 1.08821 +/- 0.00005 q = 2.3861991 +/- 0.0000732 AU e = 0.4128934 +/- 0.0000376 a = 4.0643370 +/- 0.0002886 AU n' = 0.12028722 +/- 0.00001281 P = 8.194 +/- 0.0008728 years (+/- 0.32 day) The predicted orbit for the 2022 return is as follows: T = 2022 Aug. 18.70106 TT Epoch = 2022 Aug. 9.0 TT Peri. = 213.70600 e = 0.4143790 Node = 126.56271 (2000.0) a = 4.0606194 AU Inc. = 1.08842 n'= 0.12045245 q = 2.3779841 AU P = 8.183 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 140922 I93 0.2- 0.2+ 140927 349 0.4- 0.3+ 140907 F51 0.1+ 0.1- 140922 I93 0.4- 0.2- 140929 215 1.1+ 0.9- 140907 F51 0.2- 0.2- 140922 I93 0.5- 0.3- 140929 215 0.4- 0.1- 140907 F51 0.0 0.2- 140922 W96 0.7- 0.1- 140929 215 0.8- 0.2+ 140907 F51 0.2+ 0.0 140922 W96 0.5- 0.9- 141001 H15 1.6+ 0.2- 140914 G96 0.8- 0.1- 140922 W96 0.3+ 0.1+ 141001 H15 0.6+ 0.7- 140914 G96 1.0- 0.3- 140922 W96 0.2+ 0.5+ 141001 703 0.4+ 0.6+ 140914 G96 0.9- 0.2+ 140922 850 0.8- 0.8- 141001 703 1.5- 0.4+ 140919 F51 0.1+ 0.0 140922 850 0.3- 0.1- 141001 H15 0.1- 0.3- 140919 F51 0.0 0.0 140922 850 0.6- 0.5- 141001 703 1.8- 0.4+ 140919 F51 0.1+ 0.1+ 140923 850 (0.3- 2.3-) 141002 G96 0.7- 0.2- 140919 F51 0.1+ 0.0 140923 850 1.8+ 0.1- 141002 G96 1.3- 0.5- 140919 F51 0.1+ 0.1+ 140923 850 1.5- 1.6- 141002 G96 1.0- 0.0 140919 F51 0.1+ 0.0 140923 850 0.2+ 0.3+ 141002 G96 1.2- 0.2- 140920 Q62 0.4+ 0.1- 140923 850 0.5- 0.7+ 141005 G96 0.2- 0.1+ 140920 Q62 0.5+ 0.1+ 140923 850 0.7- 0.5- 141005 G96 0.1- 0.2+ 140920 Q62 0.9+ 0.4+ 140923 F51 0.3+ 0.2- 141005 G96 0.2- 0.3+ 140920 Q62 0.6+ 0.7+ 140923 F51 0.1- 0.1- 141005 G96 0.4- 0.2- 140920 Q62 0.6+ 0.5+ 140923 F51 0.1+ 0.0 141012 F51 0.2+ 0.0 140921 958 0.4- 0.5- 140923 F51 0.0 0.0 141012 F51 0.2+ 0.2+ 140921 958 0.0 0.4- 140924 204 0.1- 0.1- 141018 703 0.3- 0.9+ 140921 118 1.6- 0.6+ 140924 204 0.0 0.1- 141018 703 0.0 0.9+ 140921 958 0.3- 0.4- 140924 204 0.3- 0.2+ 141018 703 0.4- 1.0- 140921 118 0.5- 0.2+ 140924 W96 1.0+ 0.4+ 141018 703 1.2- 1.6- 140921 118 0.6- 0.5- 140924 W96 0.2+ 0.6+ 141024 G45 0.4+ 0.1- 140921 W96 0.6+ 0.3- 140924 I41 0.0 0.6+ 141024 G45 0.0 0.1- 140921 W96 0.1+ 0.1+ 140924 W96 0.7- 0.2+ 141024 G45 0.3+ 0.3+ 140921 W96 0.6+ 0.2+ 140924 711 0.3+ 0.0 141024 G45 0.1- 0.2- 140921 850 0.1- 1.0- 140924 711 0.2+ 0.0 141026 K25 0.1+ 0.3+ 140921 850 0.2- 0.8- 140924 711 0.2+ 0.1+ 141026 K25 0.2+ 0.5+ 140921 850 0.9- 0.1- 140924 I41 0.6+ 0.5+ 141029 K25 0.7+ 0.3+ 140921 850 0.6- 0.3+ 140925 703 (1.5+ 2.0+) 141029 K25 0.5+ 0.3+ 140921 850 0.4+ 0.5+ 140925 703 0.2- 1.5+ 141030 A77 1.5- 0.1- 140921 850 0.8+ 0.1+ 140925 703 0.4+ 0.5+ 141030 A77 0.3- 0.2- 140921 568 0.4+ 0.1- 140925 I41 0.3+ 0.2+ 141118 130 0.4+ 0.4+ 140921 568 0.4+ 0.2- 140925 I41 0.1+ 0.2+ 141118 130 0.1+ 1.4- 140921 568 0.3+ 0.2- 140927 349 0.5+ 1.2+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2019 Dec. 18

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