Nakano Note (Nakano wa Kangaeru noda) NK 3218 P/2014 HU195

The following improved orbital elements, by S. Nakano, are from 45 observations 2014 Apr. 24 to 2016 Aug. 8. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.41 arc second. Epoch = 2015 May 18.0 TT T = 2015 May 18.00924 +/- 0.03765 (m.e.) TT Peri. = 145.07065 +/- 0.00331 Node = 115.78827 +/- 0.00009 (2000.0) Inc. = 5.82257 +/- 0.00004 q = 5.1211520 +/- 0.0000137 AU e = 0.7652943 +/- 0.0000127 a = 21.8194593 +/- 0.0000541 AU n' = 0.00967026 +/- 0.00000004 P = 101.922 +/- 0.0003785 years (+/- 0.14 day) The predicted orbit for the 2117 return is as follows: T = 2117 Sept.15.29338 TT Epoch = 2117 Aug. 31.0 TT Peri. = 145.22563 e = 0.7651248 Node = 115.72802 (2000.0) a = 21.7750594 AU Inc. = 5.82931 n'= 0.00969985 q = 5.1144215 AU P = 101.611 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 160706 C10 0.9- 0.8- 160707 568 0.3+ 0.0 140424 W84 0.1- 0.1- 160706 Y28 0.0 0.0 160707 568 0.3+ 0.0 140424 W84 0.1- 0.1+ 160706 Y28 0.2- 0.1+ 160716 G96 1.8- 0.3- 140424 W84 0.1+ 0.1- 160706 C10 0.9- 1.2- 160716 G96 1.3- 0.3+ 140424 W84 0.0 0.0 160706 Y28 0.1+ 0.1- 160716 G96 0.8- 0.4+ 140424 W84 0.1+ 0.0 160706 Y28 0.0 0.0 160716 G96 1.8- 0.0 140425 W84 0.0 0.0 160706 H06 1.8- 1.0- 160728 D29 1.7- 0.7- 140425 W84 0.1- 0.1+ 160706 H06 (2.2- 0.8-) 160728 D29 0.9- 0.3- 140425 W84 0.1+ 0.1- 160706 H06 1.8- 0.9- 160808 F51 0.0 0.0 140425 W84 0.0 0.0 160706 568 0.1+ 0.0 160808 F51 0.1+ 0.0 140425 W84 0.1- 0.0 160706 568 0.1+ 0.0 160808 F51 0.0 0.1- 2016/ 160706 568 0.1+ 0.0 160808 F51 0.0 0.0 160705 J04 1.1- 0.4- 160706 568 0.1+ 0.0 160808 F51 0.1+ 0.0 160705 J04 1.3- 0.3+ 160706 568 0.1+ 0.0 160808 F51 0.1+ 0.1+ 160705 J04 0.5- 0.5+ 160706 568 0.1+ 0.0 160808 F51 0.0 0.1- 160705 J04 0.0 0.4+ 160707 568 0.3+ 0.0 160808 F51 0.0 0.0 ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2016 Aug. 10

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