Nakano Note (Nakano wa Kangaeru noda) NK 3350 P/2016 A3 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 77 observations 2016 Jan. 4 to 2017 Mar. 1. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.49 arc second. See the previous orbit in NK 3330 (= HICQ 2017). Epoch = 2017 Mar. 28.0 TT T = 2017 Apr. 13.63546 +/- 0.02452 (m.e.) TT Peri. = 338.47667 +/- 0.00289 Node = 187.79409 +/- 0.00018 (2000.0) Inc. = 8.59400 +/- 0.00002 q = 4.7894228 +/- 0.0000375 AU e = 0.3797751 +/- 0.0000081 a = 7.7220740 +/- 0.0000152 AU n' = 0.04593071 +/- 0.00000014 P = 21.459 +/- 0.0000633 years The predicted orbit for the 2039 return is as follows: T = 2039 June 19.66930 TT Epoch = 2039 June 21.0 TT Peri. = 351.10806 e = 0.3686192 Node = 179.47350 (2000.0) a = 7.5523180 AU Inc. = 9.10845 n'= 0.04748798 q = 4.7683885 AU P = 20.755 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2016/ 160113 G45 0.0 0.8+ 170221 J22 0.5+ 0.2+ 160104 F51 0.1- 0.1+ 160113 G45 0.2+ 0.2+ 170221 J22 0.5+ 0.7+ 160104 F51 0.1- 0.1+ 160129 703 (2.5+ 0.1+) 170221 J22 1.0- 0.0 160104 F51 0.1- 0.1+ 160129 703 1.2+ 0.3- 170222 G45 0.4- 0.1+ 160104 F51 0.1- 0.1+ 160129 703 (3.9- 0.6+) 170222 G45 0.5- 0.3+ 160105 568 0.1+ 0.1- 160204 J22 0.5- 0.2+ 170222 G45 0.1- 0.2+ 160105 568 0.1+ 0.1- 160204 J22 1.1- 0.5+ 170222 G45 0.1+ 0.0 160105 568 0.1+ 0.0 160204 J22 1.3- 0.1+ 170222 H15 1.7- 0.5+ 160106 H21 0.2- 0.0 160212 F51 0.2+ 0.1- 170222 H15 0.7- 0.0 160106 H21 0.2- 0.1- 160212 F51 0.2+ 0.1- 170222 H15 1.8- 0.9+ 160106 H21 0.3- 0.1- 160212 F51 0.2+ 0.1- 170224 703 1.2- 0.8+ 160106 O75 0.7- 1.0+ 160212 F51 0.2+ 0.1- 170224 703 0.6- 0.1+ 160106 O75 0.5- 1.2+ 160228 W55 0.7+ 0.1- 170224 703 1.0- 0.4+ 160106 O75 1.1- 0.0 160228 W55 0.3+ 0.6- 170224 703 0.2- 0.5+ 160107 F51 0.1- 0.1- 160310 215 0.4+ 0.2+ 170224 G45 0.4- 0.2+ 160107 F51 0.1- 0.1- 160310 215 0.4+ 0.2+ 170224 G45 0.4- 0.2+ 160107 F51 0.0 0.1+ 160310 215 0.6+ 0.4+ 170224 G45 0.1- 0.2+ 160107 F51 0.1- 0.0 161204 G96 1.4- 0.3+ 170224 G45 0.1+ 0.2+ 160107 Q62 0.3- 0.0 161204 G96 1.6- 0.8+ 170224 G45 0.2- 0.1- 160107 Q62 0.2- 0.2+ 161204 G96 1.4- 0.5+ 170224 T05 0.4- 1.1+ 160107 Q62 0.2+ 0.1- 161213 F51 0.2+ 0.0 170224 T05 0.9- 0.3+ 160110 E07 0.1- 0.0 161213 F51 0.2+ 0.1- 170224 T05 (2.3- 0.4+) 160110 E07 0.4- 0.0 161213 F51 0.1+ 0.3- 170224 T05 1.9- 0.7- 160112 F51 0.0 0.1- 2017/ 170301 J22 0.7+ 0.1+ 160112 F51 0.1+ 0.0 170126 F51 0.3+ 0.2- 170301 J22 0.4+ 1.0+ 160112 F51 0.1+ 0.0 170126 F51 0.2+ 0.1- 170301 J22 0.7+ 1.1+ 160113 G45 0.5- 0.2+ 170126 F51 0.4+ 0.2- 160113 G45 0.5- 0.2+ 170126 F51 0.2+ 0.2- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2017 Mar. 28