Nakano Note (Nakano wa Kangaeru noda) NK 3447 P/2015 M2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 135 observations 2015 June 22 to 2017 Sept. 30. 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 NK 3030 and NK 3238 (= HICQ 2017). Epoch = 2015 Sept.15.0 TT T = 2015 Aug. 31.65726 +/- 0.01076 (m.e.) TT Peri. = 224.82174 +/- 0.00082 Node = 86.61596 +/- 0.00017 (2000.0) Inc. = 3.97407 +/- 0.00001 q = 5.9128107 +/- 0.0000101 AU e = 0.1789527 +/- 0.0000048 a = 7.2015470 +/- 0.0000061 AU n' = 0.05099944 +/- 0.00000007 P = 19.326 +/- 0.0000247 years The predicted orbit for the 2035 return is as follows: T = 2035 Jan. 10.08548 TT Epoch = 2034 Dec. 24.0 TT Peri. = 223.58991 e = 0.1843940 Node = 86.21421 (2000.0) a = 7.2929974 AU Inc. = 3.96658 n'= 0.05004319 q = 5.9482127 AU P = 19.695 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2015/ 150712 G32 0.0 0.1- 150822 474 0.1+ 0.1- 150622 G45 0.1+ 0.0 150712 G32 1.0- 0.3- 150825 474 0.2- 0.5- 150622 G45 1.0- 0.5- 150712 G32 0.9- 0.7- 150825 474 0.3- 0.2- 150622 G45 0.8- 0.4- 150712 G32 0.3- 0.2+ 150825 474 0.3- 0.2- 150622 G45 1.1- 0.9- 150712 E23 0.4- 0.5- 150825 474 0.3- 0.3- 150628 F51 0.4+ 0.0 150712 E23 0.2- 1.0- 150906 F51 0.2+ 0.1+ 150628 F51 0.1+ 0.0 150712 E23 0.7- 0.8- 150906 F51 0.1- 0.1- 150628 F51 0.4+ 0.2+ 150712 104 1.2- 0.5- 150906 F51 0.2+ 0.0 150629 F51 0.3+ 0.1+ 150712 104 0.8- 0.0 150906 F51 0.0 0.1- 150629 F51 0.5+ 0.1+ 150714 I93 0.4- 0.4- 151024 F51 0.1- 0.1+ 150630 F51 0.3+ 0.1+ 150714 I93 0.4- 0.4- 151024 F51 0.3+ 0.1+ 150630 F51 0.0 0.0 150714 G40 0.4- 0.7- 151024 F51 0.0 0.1- 150630 F51 0.3+ 0.2+ 150714 G40 1.0- 0.6- 151024 F51 0.2+ 0.0 150630 F51 0.2+ 0.1- 150714 G40 0.1- 0.2- 2016/ 150707 Q62 0.1- 0.0 150714 G40 0.1- 0.4- 160803 F51 0.3+ 0.1+ 150707 Q62 0.1- 0.1+ 150714 F51 0.4- 0.0 160803 F51 0.3+ 0.0 150707 Q62 0.3- 0.1- 150714 F51 0.1+ 0.0 160808 Q62 0.1- 0.0 150708 291 1.2- 0.0 150714 F51 0.0 0.0 160808 Q62 0.4- 0.0 150708 291 1.4- 0.6- 150719 F51 0.2+ 0.2+ 160825 691 (2.0- 0.8-) 150709 958 1.0- 0.8- 150719 F51 0.1+ 0.1+ 160825 691 (2.1- 0.6-) 150709 958 0.1+ 0.4+ 150719 F52 0.2+ 0.0 160825 691 0.7- 0.1- 150709 W96 1.6- 0.3- 150719 F51 0.1+ 0.1+ 160826 A71 0.9- 0.7- 150709 W96 1.2- 0.8- 150719 F52 0.0 0.1+ 160826 A71 1.4- 0.7- 150709 291 0.4- 0.6- 150719 F51 0.1+ 0.1+ 160827 W98 0.3- 0.7- 150709 291 0.4- 0.0 150719 F52 0.2+ 0.1+ 160827 W98 1.1- 0.1+ 150709 291 0.4- 0.2+ 150719 F52 0.0 0.0 160827 W98 1.2- 0.5+ 150709 958 1.1- 0.1+ 150721 G45 0.3- 0.2- 2017/ 150710 958 1.4- 0.4- 150721 G45 0.1- 0.2- 170925 F51 0.1+ 0.0 150710 958 1.3- 0.7- 150721 G45 0.9- 0.1- 170925 F51 0.1+ 0.1+ 150710 958 0.5- 0.6- 150721 G45 0.9- 0.2- 170925 F51 0.1+ 0.0 150710 958 1.1- 0.0 150721 G45 0.7- 0.1- 170925 F51 0.1- 0.1+ 150710 958 0.5- 0.3- 150725 F51 0.1+ 0.0 170925 F51 0.1- 0.0 150710 958 0.6- 0.7- 150725 F51 0.0 0.1+ 170925 F51 0.0 0.1+ 150710 958 0.8- 0.9- 150725 F51 0.1+ 0.0 170925 F51 0.3- 0.4+ 150710 W96 0.7- 0.1- 150725 F51 0.1- 0.1- 170925 F51 0.0 0.0 150710 W96 0.2- 0.0 150810 F51 0.2+ 0.0 170928 G96 0.0 0.2- 150711 291 1.9- 0.7- 150810 F51 0.0 0.5+ 170928 G96 1.4- 1.2- 150711 291 0.3- 0.2- 150810 F51 0.1+ 0.1+ 170928 G96 (2.3- 1.0-) 150711 291 0.3- 0.1- 150811 F51 0.1- 0.1- 170928 G96 0.7- 1.1- 150711 474 0.4- 0.2- 150811 F51 0.1+ 0.1+ 170929 F51 0.2+ 0.1- 150711 474 0.3- 0.1- 150811 F51 0.1+ 0.1+ 170929 F51 0.0 0.0 150711 474 0.3- 0.0 150812 215 1.5- 0.6+ 170929 F51 0.3+ 0.1- 150711 474 0.4- 0.0 150812 215 1.6- 0.5+ 170929 F51 0.1+ 0.1- 150712 204 0.3+ 0.9- 150812 215 0.7- 0.2- 170930 691 1.2- 0.7- 150712 204 0.2- 0.4- 150815 E07 0.4- 0.3- 170930 691 (2.0- 1.1-) 150712 291 0.2- 0.0 150815 E07 0.2- 0.5- 170930 691 0.9- 0.3- 150712 291 1.7- 0.4- 150822 474 0.4- 0.2- 150712 291 1.3- 0.3- 150822 474 0.0 0.0 ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2017 Oct. 5