Nakano Note (Nakano wa Kangaeru noda) NK 3300 P/2013 YG46 (Spacewatch)
The following improved orbital elements, by T. Kobayashi, are from 58 observations 2013 Dec. 26 to 2016 May 26. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.50 arc second. See the previous orbits in HICQ 2014 and HICQ 2016. Epoch = 2017 Feb. 16.0 TT T = 2017 Jan. 29.59798 +/- 0.08220 (m.e.) TT Peri. = 242.38790 +/- 0.00858 Node = 48.90746 +/- 0.00362 (2000.0) Inc. = 7.85886 +/- 0.00051 q = 1.7879544 +/- 0.0002514 AU e = 0.4541582 +/- 0.0000719 a = 3.2755909 +/- 0.0006274 AU n' = 0.16625304 +/- 0.00004619 P = 5.928 +/- 0.0017147 years (+/- 0.63 day) The predicted orbit for the 2023 return is as follows: T = 2023 Jan. 6.44171 TT Epoch = 2023 Jan. 16.0 TT Peri. = 242.60922 e = 0.4545261 Node = 48.83523 (2000.0) a = 3.2736956 AU Inc. = 7.85739 n'= 0.16639744 q = 1.7857154 AU P = 5.923 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2013/ 140129 G96 0.5+ 0.5+ 140220 V37 0.2+ 0.1+ 131226 F51 0.1+ 0.4- 140129 G96 0.0 0.3+ 140220 V37 0.6+ 0.1+ 131226 F51 0.5+ 0.7- 140129 G96 0.1+ 0.2+ 140220 V37 0.4+ 0.1- 131227 691 0.3- 0.1+ 140202 I89 0.3+ 0.0 140220 V37 0.1+ 0.2- 131227 691 0.6+ 0.1+ 140202 I89 1.0- 0.5+ 140220 V37 0.0 0.3+ 131227 691 0.8- 0.5- 140219 W96 0.5- 0.7+ 140220 V37 0.0 0.1- 131230 691 0.2+ 0.1+ 140219 W96 0.6+ 0.5- 140220 V37 0.0 0.0 131230 691 0.1- 0.3+ 140219 H06 0.5+ 0.9- 140220 V37 0.1- 0.2- 131230 691 0.3- 0.1+ 140219 H06 0.0 0.5- 140220 V37 0.1- 0.3- 131231 691 1.2- 0.0 140219 H06 0.9- 0.7- 140220 V37 0.1- 0.3- 131231 691 0.1+ 0.2+ 140219 G96 0.2- 0.0 140220 V37 0.1- 0.1- 131231 691 0.2+ 0.4+ 140219 G96 0.4+ 0.2+ 140220 F51 0.1+ 0.1- 2014/ 140219 G96 0.1- 0.9+ 140220 F51 0.7- 0.3- 140104 691 0.0 0.2+ 140219 G96 0.1+ 0.3+ 140220 F51 0.7- 0.7+ 140104 691 0.8+ 0.2+ 140219 G96 0.1+ 0.2+ 140220 F51 0.7- 0.0 140104 691 0.1- 0.2+ 140219 G96 0.9+ 0.4+ 2016/ 140124 F51 0.3- 0.6- 140219 G96 0.9+ 0.3- 160526 I57 0.3+ 1.7- 140124 F51 0.1- 0.1+ 140219 958 0.4- 0.9+ 160526 I57 0.1- 0.3- 140124 F51 0.7+ 0.5+ 140219 958 0.3+ 0.7- 160526 I57 0.2- 1.9+ 140124 F51 0.0 0.9- 140219 958 0.7- 0.8- 140129 G96 0.5+ 0.4+ 140220 V37 0.1+ 0.2+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2017 Feb. 4