Nakano Note (Nakano wa Kangaeru noda) NK 3665 P/2013 A2 (Scotti)
The following improved orbital elements, by S. Nakano, are from 91 observations 2013 Jan. 6 to June 1. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.48 arc second. See an orbit in HICQ 2013. Epoch = 2013 Jan. 28.0 TT T = 2013 Feb. 7.28677 +/- 0.00711 (m.e.) TT Peri. = 134.50270 +/- 0.00296 Node = 355.84197 +/- 0.00074 (2000.0) Inc. = 3.36618 +/- 0.00005 q = 2.1773969 +/- 0.0000102 AU e = 0.4558585 +/- 0.0000060 a = 4.0015267 +/- 0.0000482 AU n' = 0.12313046 +/- 0.00000222 P = 8.005 +/- 0.0001447 years (+/- 0.05 day) The predicted orbit for the 2021 return is as follows: T = 2021 Feb. 15.68324 TT Epoch = 2021 Mar. 7.0 TT Peri. = 134.53110 e = 0.4544173 Node = 355.81033 (2000.0) a = 4.0140045 AU Inc. = 3.36137 n'= 0.12255677 q = 2.1899714 AU P = 8.042 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2013/ 130116 C32 0.0 0.2+ 130205 291 0.3+ 0.2+ 130106 691 1.0- 0.7+ 130118 900 0.5+ 0.3+ 130206 372 1.0- 0.4+ 130106 691 0.4- 0.2+ 130118 900 1.3+ 0.9- 130206 372 0.6- 0.2+ 130106 691 1.0- 0.7+ 130119 D90 0.3+ 0.1+ 130210 D90 0.5- 0.2- 130106 291 0.5+ 0.1- 130119 D90 0.3- 0.1+ 130210 D90 0.1- 0.6+ 130106 291 0.5+ 0.1- 130119 D90 0.4- 0.2+ 130210 D90 1.1- 0.4+ 130106 291 0.4+ 0.2- 130122 291 0.2+ 0.0 130210 349 0.1- 0.3+ 130107 291 0.8+ 0.3- 130122 291 0.1+ 0.0 130210 349 0.8- 0.5- 130107 291 0.2+ 0.0 130122 291 0.1+ 0.2+ 130211 372 1.9- 0.9+ 130107 291 0.2- 0.2+ 130122 G96 0.2- 0.1+ 130211 372 1.6- 0.6+ 130107 291 0.4+ 0.1- 130122 G96 0.5- 0.2- 130212 F51 0.0 0.2- 130107 291 0.5+ 0.2- 130122 G96 0.2- 0.1- 130212 F51 0.1+ 0.2- 130108 291 0.2+ 0.0 130122 G96 0.9- 0.0 130212 F51 0.1+ 0.2- 130108 291 0.6+ 0.2- 130122 A13 0.1+ 0.2- 130212 F51 0.1+ 0.2- 130108 291 0.1- 0.3- 130122 A13 0.0 0.1- 130215 372 (2.5- 1.2+) 130108 F65 0.4+ 0.4- 130131 D95 0.7+ 0.2- 130215 372 (2.7- 0.9+) 130108 F65 0.7+ 0.2+ 130131 D95 1.3+ 0.4+ 130216 204 0.2+ 0.3+ 130110 691 0.4- 0.3+ 130131 D95 0.3+ 1.1+ 130216 204 0.2+ 0.2- 130110 691 0.8- 0.2- 130202 372 0.7- 0.7+ 130216 A13 0.3- 0.5- 130110 691 1.2- 0.3+ 130202 372 0.5- 0.2+ 130216 A13 0.4+ 0.3- 130111 D90 0.2- 0.2- 130202 372 0.7- 0.4+ 130305 291 0.0 0.4+ 130111 D90 0.4- 0.0 130203 561 0.7+ 0.7- 130305 291 0.2- 0.3+ 130111 D90 0.2+ 0.0 130203 561 0.4+ 0.3+ 130413 291 0.3- 0.5+ 130113 J47 0.2+ 0.7+ 130203 561 1.5+ 0.4- 130413 291 0.0 0.6+ 130113 J47 0.0 0.1+ 130204 561 0.5+ 0.2- 130413 291 0.0 0.7+ 130113 J47 0.3- 0.0 130204 213 0.1- 0.3- 130502 291 0.5- 0.2+ 130116 H06 0.0 0.0 130204 213 0.2+ 0.1- 130502 291 0.7+ 0.2+ 130116 H06 0.1+ 0.2+ 130204 213 0.1+ 0.5+ 130502 291 0.3+ 0.2+ 130116 H06 0.1- 0.5+ 130204 157 0.2- 0.1- 130601 291 0.1+ 0.3- 130116 C32 0.5+ 0.7- 130204 157 0.5+ 0.1- 130601 291 0.1- 0.2- 130116 C32 0.6- 0.1- 130205 291 0.1+ 0.0 130116 C32 0.0 0.4+ 130205 291 0.1+ 0.0 ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2018 Aug. 8