Nakano Note (Nakano wa Kangaeru noda) NK 3136 P/2014 W4 (PANSTARRS)

The following improved orbital elements, by T. Kobayashi, are from 59 observations 2014 Oct. 25 to 2015 Dec. 18. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.31 arc second. See the previous orbits in HICQ 2015 and NK 3027. Epoch = 2016 Jan. 13.0 TT T = 2015 Dec. 29.65772 +/- 0.01120 (m.e.) TT Peri. = 67.43190 +/- 0.00150 Node = 33.35279 +/- 0.00008 (2000.0) Inc. = 15.27441 +/- 0.00003 q = 4.2610756 +/- 0.0000145 AU e = 0.3530945 +/- 0.0000139 a = 6.5868594 +/- 0.0001430 AU n' = 0.05830241 +/- 0.00000190 P = 16.905 +/- 0.0005506 years (+/- 0.20 day) The predicted orbit for the 2032 return is as follows: T = 2032 Nov. 25.72176 TT Epoch = 2032 Nov. 24.0 TT Peri. = 67.50183 e = 0.3544442 Node = 33.22710 (2000.0) a = 6.5963078 AU Inc. = 15.26883 n'= 0.05817719 q = 4.2582846 AU P = 16.941 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 141119 958 0.5- 0.6- 151106 461 0.3- 0.1- 141025 F51 0.3- 0.0 141119 958 0.0 0.5- 151106 461 0.0 0.0 141025 F51 0.1+ 0.2- 141120 W96 0.4- 0.7- 151106 461 0.5- 0.0 141025 F51 0.2+ 0.2+ 141120 W96 0.6+ 0.2+ 151107 461 0.0 0.5+ 141118 F51 0.0 0.1- 141120 W96 0.3- 0.1+ 151107 461 0.0 0.2+ 141118 F51 0.1+ 0.2- 141120 695 0.0 0.7- 151107 461 0.2- 0.0 141118 F51 0.3+ 0.1- 141120 695 0.0 0.2+ 151107 461 0.1+ 0.2+ 141118 F51 0.3+ 0.0 141120 695 0.1+ 0.2- 151203 F51 0.6+ 0.1- 141119 H01 0.2+ 0.3+ 141211 F51 0.0 0.1+ 151203 F51 0.6+ 0.1- 141119 H01 0.2+ 0.3+ 141211 F51 0.2+ 0.3+ 151203 F51 0.6+ 0.1- 141119 H01 0.2+ 0.3+ 141211 F51 0.1+ 0.2+ 151203 F51 0.6+ 0.1- 141119 H01 0.2+ 0.2+ 141211 F51 0.2- 0.1+ 151218 G45 0.7- 0.1- 141119 695 0.6- 0.1- 2015/ 151218 G45 0.3+ 0.2- 141119 695 0.3+ 0.1+ 150213 461 0.1+ 0.3+ 151218 G45 0.1+ 0.1+ 141119 568 0.3+ 0.2+ 150213 461 0.1- 0.4+ 151218 G45 0.1+ 0.2- 141119 568 0.3+ 0.1+ 150213 461 0.3+ 0.3+ 151218 G45 0.0 0.0 141119 568 0.3+ 0.2+ 150214 G45 0.7- 0.1- 151218 G45 0.8- 0.1- 141119 Q62 0.4- 0.3+ 150214 G45 0.0 0.4+ 151218 G45 0.1+ 0.0 141119 Q62 0.2- 0.0 150214 G45 0.5+ 0.4+ 151218 G45 0.4- 0.2- 141119 Q62 0.0 0.3- 150214 G45 0.3- 0.0 141119 958 0.2- 0.5- 150214 G45 0.7- 0.6- ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2016 May 7

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