Nakano Note (Nakano wa Kangaeru noda) NK 3315 P/2015 PD229 (Cameron-ISON)
The following improved orbital elements, by T. Kobayashi, are from 100 observations 2015 May 27 to 2016 Nov. 24. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.36 arc second. See the previous orbits in NK 3059 (= HICQ 2016) and NK 3247. Epoch = 2015 Aug. 6.0 TT T = 2015 Aug. 14.33177 +/- 0.02650 (m.e.) TT Peri. = 352.38341 +/- 0.00285 Node = 342.77302 +/- 0.00024 (2000.0) Inc. = 2.02693 +/- 0.00004 q = 4.8319221 +/- 0.0000301 AU e = 0.3267554 +/- 0.0000063 a = 7.1770676 +/- 0.0000811 AU n' = 0.05126058 +/- 0.00000087 P = 19.227 +/- 0.0003257 years (+/- 0.12 day) The predicted orbit for the 2034 return is as follows: T = 2034 Nov. 12.32457 TT Epoch = 2034 Nov. 14.0 TT Peri. = 351.60783 e = 0.3338750 Node = 342.23157 (2000.0) a = 7.3078135 AU Inc. = 2.00088 n'= 0.04989108 q = 4.8679176 AU P = 19.755 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2015/ 150904 Q62 0.2+ 0.3+ 150915 G45 0.2+ 0.3+ 150527 W84 0.0 0.1- 150904 Q62 0.1- 0.5+ 150915 G45 0.0 0.1+ 150527 W84 0.2+ 0.1- 150904 Q62 0.1- 0.3+ 150915 G45 0.2- 0.3+ 150527 W84 0.0 0.0 150909 F51 0.0 0.1+ 150918 G96 0.2- 0.2- 150527 W84 0.0 0.0 150909 F51 0.1+ 0.1+ 150918 G96 0.0 0.1- 150528 W84 0.5- 0.3- 150911 G45 0.0 0.1+ 150918 G96 0.2- 0.0 150805 G45 0.4- 0.2- 150911 G45 0.2+ 0.1+ 150918 G96 0.1- 0.1+ 150805 G45 0.3- 0.0 150911 G45 0.2+ 0.2+ 151002 D29 0.0 0.1- 150805 G45 0.8- 0.1+ 150911 G45 0.2+ 0.0 151002 D29 0.1+ 0.4- 150805 G45 0.0 0.3- 150911 G45 0.0 0.1- 151009 D29 0.5+ 0.1+ 150815 Q60 0.4- 0.0 150911 G45 0.1+ 0.0 151009 D29 0.6+ 0.5- 150815 Q60 0.2- 0.6- 150911 G45 0.3+ 0.3- 151009 D29 0.0 0.6+ 150815 Q60 0.4- 0.2- 150911 G45 0.1+ 0.3- 151017 D29 0.4+ 0.3+ 150816 D29 0.5- 0.2+ 150912 H45 0.0 0.1- 151017 D29 0.4+ 0.1- 150816 D29 0.0 0.0 150912 G45 0.0 0.2- 151017 D29 0.0 0.3+ 150816 D29 0.4- 0.1- 150912 H45 0.5+ 0.3- 151126 D29 0.2- 0.0 150816 Q60 0.6- 0.1+ 150912 H45 0.3- 0.1- 151126 D29 0.5- 1.1- 150816 Q60 0.2- 0.5- 150912 H45 0.0 0.6- 151209 G96 0.1+ 0.3+ 150816 Q60 0.3+ 0.1- 150912 G45 0.0 0.0 151209 G96 0.2- 0.0 150817 958 0.8- 0.2+ 150912 G45 0.1+ 0.0 151209 G96 0.2+ 0.1- 150817 958 0.1- 0.1- 150912 G45 0.2+ 0.0 151209 G96 0.2+ 0.1+ 150817 958 0.5+ 0.2- 150912 G45 0.3+ 0.1+ 2016/ 150817 N42 0.1- 0.0 150912 G45 0.2+ 0.0 160827 461 0.0 0.5+ 150817 N42 0.1- 0.0 150912 G45 0.2+ 0.1- 160827 461 0.9+ 0.7+ 150817 N42 0.1- 0.1+ 150914 G45 0.3+ 0.3- 160828 461 0.5- 0.4+ 150817 157 0.2- 0.1- 150914 G45 0.2+ 0.2- 160828 461 0.2+ 0.2- 150817 157 0.2+ 0.5- 150914 G45 0.2+ 0.0 160829 461 0.9+ 0.6+ 150818 703 0.1+ 0.6+ 150914 G45 0.6+ 0.6+ 160829 461 0.5+ 0.8+ 150818 703 0.2- 0.7+ 150914 G45 0.1+ 0.3- 161120 215 0.5- 0.5- 150818 703 0.4- 0.0 150914 G45 0.4+ 0.0 161124 B15 1.8- 0.8- 150818 703 0.1+ 0.4+ 150914 G45 0.1+ 0.0 161124 B15 1.2- 0.9- 150821 F51 0.1- 0.1+ 150915 G45 0.1- 0.1- 161124 B15 1.3+ 0.2- 150821 F51 0.1- 0.1+ 150915 G45 0.2+ 0.1+ 161129 215 (7.2- 2.5-) 150821 F51 0.0 0.1+ 150915 G45 0.0 0.3+ 150821 F51 0.1- 0.1+ 150915 G45 0.0 0.3+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2017 Feb. 6