Nakano Note (Nakano wa Kangaeru noda) NK 3576 P/2017 W3 (Gibbs)
The following improved orbital elements, by S. Nakano, are from 107 observations 2017 Nov. 27 to 2018 Mar. 21. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.64 arc second. Epoch = 2018 Feb. 11.0 TT T = 2018 Feb. 24.83812 +/- 0.09713 (m.e.) TT Peri. = 326.42216 +/- 0.01622 Node = 210.75492 +/- 0.00077 (2000.0) Inc. = 18.31630 +/- 0.00025 q = 3.8373904 +/- 0.0000655 AU e = 0.5039751 +/- 0.0000437 a = 7.7362860 +/- 0.0006948 AU n' = 0.04580420 +/- 0.00000617 P = 21.518 +/- 0.0028992 years (+/- 1.06 days) The predicted orbit for the 2040 return is as follows: T = 2040 Jan. 6.89202 TT Epoch = 2040 Jan. 7.0 TT Peri. = 327.17131 e = 0.5140308 Node = 209.36610 (2000.0) a = 7.9941147 AU Inc. = 18.15022 n'= 0.04360623 q = 3.8848936 AU P = 22.602 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 171208 926 0.4- 0.1- 180110 F51 0.1+ 0.3- 171127 703 0.4- 0.5+ 171213 I52 1.2- 0.4+ 180110 F51 0.1- 0.2- 171127 703 0.3- 0.6+ 171213 I52 0.3- 0.9+ 180110 F51 0.0 0.1- 171127 703 0.3+ 0.6+ 171213 I52 0.7- 1.1+ 180115 215 0.5- 0.3+ 171127 703 0.6- 1.1+ 171213 I52 0.5- 0.6+ 180115 215 0.8- 0.6+ 171128 I52 0.4- 1.0+ 171214 I52 0.2- 0.4+ 180115 215 0.7- 0.6+ 171128 I52 0.7+ 1.0+ 171214 I52 0.4- 0.3+ 180115 Q11 1.1- 1.3+ 171128 I52 0.5+ 0.3- 171214 I52 0.6- 0.6+ 180115 Q11 1.3- 1.2+ 171128 I52 0.6- 0.3+ 171214 I52 0.2- 0.9+ 180123 372 1.4- 1.5+ 171128 I52 0.0 0.2+ 171215 J22 (3.4- 0.8-) 180123 372 1.5- 1.0+ 171128 I52 0.3+ 0.2+ 171215 J22 1.0+ 1.9- 180127 349 1.2+ 0.7- 171128 I52 0.1- 0.2- 171215 J22 (3.3+ 1.3-) 180127 349 (2.0+ 0.5-) 171128 I52 0.0 0.0 171215 I52 0.5- 0.0 180211 Q62 0.1- 0.1- 171128 I52 0.3+ 0.0 171215 I52 0.7- 0.1+ 180211 Q62 0.5- 0.2+ 171128 I52 0.3+ 0.2- 171216 I52 0.9- 1.4+ 180213 Q11 0.2- 0.5+ 171128 I52 0.4+ 0.5- 171216 I52 0.0 0.7+ 180213 Q11 0.1- 0.3+ 171128 I52 0.9+ 0.7- 171216 I52 0.0 0.4+ 180213 Q11 0.1- 0.2+ 171129 U69 0.6- 0.6+ 171219 691 0.4- 0.6+ 180222 D29 0.1- 0.2+ 171129 U69 0.5- 0.3+ 171219 691 0.2- 0.5+ 180222 D29 0.4+ 0.2+ 171130 A77 0.2- 1.3+ 171219 691 0.7- 1.0+ 180222 D29 0.3+ 0.3+ 171130 A77 (0.8- 2.7+) 171220 Q11 0.2- 0.1- 180313 Q11 1.1+ 0.1+ 171130 A77 (0.3- 2.2+) 171220 Q11 0.3- 0.1- 180313 Q11 0.2+ 0.4- 171130 U69 1.0+ 0.1- 171221 Q11 0.4- 1.1+ 180313 Q11 0.1+ 0.6- 171130 U69 0.4+ 0.1- 171221 Q11 0.5- 1.1+ 180319 T08 0.8- 0.6+ 171201 W87 1.4+ 0.8- 171222 G96 1.2- 1.1+ 180319 T08 0.8- 0.4- 171201 W87 1.3+ 0.8- 171222 G96 0.9- 0.9+ 180319 T08 0.7- 0.4+ 171201 W87 1.4+ 0.7- 171222 G96 0.7- 0.7+ 180319 T08 0.8- 0.1+ 171201 W87 1.4+ 0.5- 171222 G96 0.8- 0.8+ 180319 T08 0.7- 0.7+ 171202 Z21 0.5+ 0.1- 171229 349 (2.0+ 1.4+) 180319 T08 0.7+ 0.2+ 171202 Z21 0.2+ 0.3+ 171229 349 1.3+ 0.8+ 180319 T08 0.0 0.5- 171202 Z21 0.7+ 0.6+ 171230 F51 0.0 0.2- 180319 T08 (1.0+ 2.5+) 171206 G40 0.6- 1.2+ 171230 F51 0.0 0.4- 180320 W96 0.3+ 0.0 171206 G40 0.5- 0.0 171230 F51 0.2+ 0.1- 180320 W96 0.4- 0.1+ 171207 G96 0.0 0.2+ 171230 F51 0.0 0.3- 180320 W96 0.0 0.2- 171207 G96 0.3+ 0.2- 171231 F51 0.1+ 0.6- 180321 A71 0.9+ 0.5+ 171207 G96 0.2+ 0.2+ 171231 F51 0.2+ 0.2- 180321 A71 0.7+ 0.6+ 171207 G96 0.7+ 0.2- 171231 F51 0.2+ 0.4- 180321 A71 0.6+ 0.9+ 171208 926 0.0 0.5+ 2018/ 180321 A71 1.4+ 0.2- 171208 926 0.1- 0.7+ 180110 F51 0.0 0.2- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2018 Apr. 6