Nakano Note (Nakano wa Kangaeru noda) NK 2954 P/2013 W2 (PANSTARRS)

The following improved orbital elements, by T. Kobayashi, are from 130 observations 2013 Nov. 27 to 2015 May 1. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.53 arc second. See the previous orbits in HICQ 2014 and NK 2825. Epoch = 2015 Jan. 18.0 TT T = 2015 Jan. 5.31507 +/- 0.01419 (m.e.) TT Peri. = 307.19745 +/- 0.00199 Node = 179.85089 +/- 0.00032 (2000.0) Inc. = 4.56654 +/- 0.00002 q = 4.4444005 +/- 0.0000297 AU e = 0.5746243 +/- 0.0000107 a = 10.4481762 +/- 0.0002578 AU n' = 0.02918390 +/- 0.00000116 P = 33.772 +/- 0.0012319 years (+/- 0.45 day) The predicted orbit for the 2044 return is as follows: T = 2044 Sept.30.93703 TT Epoch = 2044 Sept.22.0 TT Peri. = 304.09756 e = 0.5462558 Node = 178.23553 (2000.0) a = 9.5935377 AU Inc. = 4.85612 n'= 0.03316927 q = 4.3530117 AU P = 29.714 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2013/ 140109 G96 0.2- 0.1+ 150208 D29 0.1- 0.0 131127 F51 0.3+ 0.3- 140109 G96 0.2- 0.1- 150209 G96 0.9- 0.3+ 131127 F51 0.3+ 0.2- 140109 G96 0.4+ 0.0 150209 G96 1.4- 0.4+ 131127 F51 0.2+ 0.2- 140223 215 0.3+ 0.9- 150209 G96 1.6- 0.6+ 131129 H01 0.3+ 0.2- 140223 215 0.5+ 0.8- 150209 G96 0.5- 0.3+ 131129 H01 0.4+ 0.2- 140223 215 0.5+ 0.8- 150209 D29 1.5- 0.4+ 131129 H01 0.4+ 0.2- 141024 703 1.2+ 1.4- 150209 D29 0.5- 0.1- 131129 H06 0.2- 0.6+ 141024 703 0.6+ 0.3- 150209 D29 0.6- 0.1+ 131129 H06 0.1- 0.6+ 141024 703 1.2- 0.3- 150209 D29 0.5- 0.1+ 131129 H06 0.4- 0.0 141024 703 (3.4- 1.1+) 150209 D29 0.3- 0.2+ 131130 568 0.3+ 0.2- 2015/ 150209 D29 1.3- 0.1+ 131130 568 0.4+ 0.2- 150117 G45 0.2- 0.0 150212 D29 0.5- 0.3- 131130 568 0.4+ 0.2- 150117 G45 0.5- 0.1- 150212 D29 0.8- 0.2- 131130 568 0.3+ 0.3- 150117 G45 0.0 0.3+ 150212 D29 1.0- 0.9- 131130 568 0.4+ 0.3- 150117 G45 0.1+ 0.3- 150216 G45 0.4+ 0.1- 131130 568 0.3+ 0.2- 150118 691 1.6- 0.4+ 150216 G45 0.3+ 0.1+ 131201 595 0.3+ 0.3+ 150118 691 1.4- 0.5+ 150216 G45 0.6+ 0.5+ 131201 595 0.1- 0.4+ 150118 691 0.8- 0.4+ 150216 G45 1.0- 0.5+ 131201 H21 0.2+ 0.2+ 150119 G45 0.1- 0.1- 150217 D29 1.7- 0.3- 131201 H21 0.2+ 0.3+ 150119 G45 0.1+ 0.3+ 150217 D29 0.4- 0.3+ 131201 H21 0.7+ 0.1+ 150119 G45 0.1+ 0.1+ 150217 D29 0.2+ 0.1- 131203 291 0.1+ 0.1+ 150119 G45 0.5+ 0.0 150218 F51 1.0+ 0.2- 131203 291 0.0 0.2+ 150119 G45 0.1+ 0.0 150218 F51 0.9+ 0.1- 131203 958 0.1+ 0.3- 150120 G45 0.2+ 0.1+ 150218 F51 1.0+ 0.3- 131203 958 0.4+ 0.4- 150120 G45 0.3+ 0.0 150219 F51 1.2+ 0.2- 131203 958 0.1+ 0.3+ 150120 G45 0.2+ 0.0 150219 F51 1.2+ 0.3- 131208 372 0.7- 0.1+ 150120 G45 0.7+ 0.0 150219 F51 1.2+ 0.1- 131208 372 0.6- 0.1+ 150122 691 0.3- 0.3- 150220 D95 0.5+ 1.0- 131208 C10 0.1- 0.0 150122 691 0.4- 0.3+ 150220 D95 0.6+ 0.5+ 131208 C10 0.0 0.6- 150122 691 0.6- 0.4+ 150220 D95 0.5+ 0.1+ 131209 C10 0.5+ 0.1- 150124 G45 0.0 0.2+ 150224 D95 0.7+ 0.2+ 131223 215 (2.2- 0.1+) 150124 G45 0.5+ 0.1- 150224 D95 0.8- 0.0 131223 215 (2.6- 0.7+) 150124 G45 0.5+ 0.1- 150224 D95 1.1- 0.0 131225 G96 0.1+ 0.4- 150124 G45 0.5+ 0.0 150311 215 0.3+ 0.0 131225 G96 0.3- 0.1+ 150124 F51 1.1+ 0.3- 150311 215 0.4+ 0.1- 131225 G96 0.0 0.2- 150124 F51 1.2+ 0.2- 150311 215 0.5+ 0.1- 131225 G96 0.4- 0.0 150124 F51 1.0+ 0.2- 150416 G96 0.4- 0.2- 131227 372 0.5- 0.1- 150124 F51 1.0+ 0.3- 150416 G96 0.2+ 0.3- 131227 372 0.1+ 0.0 150125 G45 0.2+ 0.0 150416 G96 0.2+ 0.0 131228 349 1.6- 1.7+ 150125 G45 0.1+ 0.4+ 150416 G96 0.4+ 0.2- 131228 349 0.1- 0.4+ 150125 G45 0.4+ 0.2+ 150501 G96 0.5+ 0.0 131229 372 0.9- 0.3+ 150125 G45 0.1+ 0.1+ 150501 G96 0.6+ 0.0 131229 372 1.3- 0.4+ 150125 G45 0.1+ 0.2+ 150501 G96 0.5+ 0.2- 131229 372 0.9- 1.0+ 150125 G45 0.0 0.1+ 150501 G96 0.1+ 0.1+ 2014/ 150208 D29 0.2- 0.2- 140109 G96 0.0 0.0 150208 D29 0.2- 0.1+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2015 July 15

Back to Nakano Note Page