Nakano Note (Nakano wa Kangaeru noda) NK 3505 P/2016 A3 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 114 observations 2016 Jan. 4 to 2017 May 28. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.51 arc second. See the previous orbits in NK 3330 (= HICQ 2017) and NK 3350. Epoch = 2017 Mar. 28.0 TT T = 2017 Apr. 13.60601 +/- 0.01966 (m.e.) TT Peri. = 338.47339 +/- 0.00227 Node = 187.79415 +/- 0.00010 (2000.0) Inc. = 8.59401 +/- 0.00002 q = 4.7894805 +/- 0.0000292 AU e = 0.3797997 +/- 0.0000058 a = 7.7224739 +/- 0.0000866 AU n' = 0.04592714 +/- 0.00000077 P = 21.460 +/- 0.0003611 years (+/- 0.13 day) The predicted orbit for the 2039 return is as follows: T = 2039 June 19.99029 TT Epoch = 2039 June 21.0 TT Peri. = 351.12218 e = 0.3687224 Node = 179.43405 (2000.0) a = 7.5539264 AU Inc. = 9.11266 n'= 0.04747281 q = 4.7686243 AU P = 20.762 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2016/ 160310 215 0.1+ 0.3+ 170320 J22 0.2- 0.3- 160104 F51 0.0 0.1+ 160310 215 0.1+ 0.3+ 170320 691 (3.0- 1.0+) 160104 F51 0.0 0.1+ 160310 215 0.3+ 0.4+ 170320 691 (2.6- 0.8+) 160104 F51 0.0 0.1+ 161204 G96 1.5- 0.3+ 170320 691 1.6- 0.7+ 160104 F51 0.1- 0.1+ 161204 G96 1.7- 0.8+ 170322 F51 0.4+ 0.2+ 160105 568 0.1+ 0.1- 161204 G96 1.5- 0.5+ 170322 F51 0.0 0.1- 160105 568 0.1+ 0.1- 161213 F51 0.1+ 0.0 170322 F51 0.1+ 0.1- 160105 568 0.1+ 0.1- 161213 F51 0.1+ 0.2- 170322 F51 0.1+ 0.0 160106 H21 0.2- 0.0 161213 F51 0.0 0.3- 170325 D29 0.2+ 0.7- 160106 H21 0.2- 0.2- 2017/ 170325 D29 0.5+ 0.4+ 160106 H21 0.2- 0.1- 170126 F51 0.2+ 0.2- 170325 D29 0.4- 0.0 160106 O75 0.7- 1.0+ 170126 F51 0.1+ 0.1- 170326 A71 0.2- 0.1- 160106 O75 0.4- 1.2+ 170126 F51 0.3+ 0.2- 170326 A71 0.2- 0.6+ 160106 O75 1.0- 0.0 170126 F51 0.1+ 0.2- 170326 A71 0.9+ 0.2- 160107 F51 0.0 0.1- 170221 J22 0.3+ 0.3+ 170326 215 (2.1- 0.3-) 160107 F51 0.0 0.1- 170221 J22 0.2+ 0.8+ 170326 215 1.7- 0.7+ 160107 F51 0.0 0.1+ 170221 J22 1.3- 0.1+ 170326 215 1.6- 1.5+ 160107 F51 0.1- 0.0 170222 G45 0.7- 0.2+ 170329 J43 0.2- 0.3+ 160107 Q62 0.2- 0.1- 170222 G45 0.8- 0.3+ 170329 J43 0.2- 0.2+ 160107 Q62 0.2- 0.2+ 170222 G45 0.4- 0.3+ 170329 J43 0.3- 0.1+ 160107 Q62 0.3+ 0.1- 170222 G45 0.2- 0.1+ 170329 J43 0.0 0.1- 160110 E07 0.0 0.0 170222 H15 (2.0- 0.6+) 170330 F51 0.4+ 0.2- 160110 E07 0.3- 0.0 170222 H15 0.9- 0.0 170330 F51 0.0 0.0 160112 F51 0.0 0.1- 170222 H15 (2.1- 0.9+) 170330 F51 0.5+ 0.5- 160112 F51 0.1+ 0.0 170224 703 1.5- 0.9+ 170330 F51 0.3- 0.4+ 160112 F51 0.1+ 0.1- 170224 703 0.9- 0.2+ 170331 A71 0.3- 0.4+ 160113 G45 0.5- 0.2+ 170224 703 1.3- 0.4+ 170331 A71 0.3- 0.5+ 160113 G45 0.5- 0.2+ 170224 703 0.5- 0.6+ 170401 J43 0.3+ 0.2- 160113 G45 0.0 0.8+ 170224 G45 0.6- 0.2+ 170401 J43 0.0 0.1- 160113 G45 0.3+ 0.2+ 170224 G45 0.7- 0.2+ 170401 J43 0.4+ 0.1- 160129 703 (2.4+ 0.1+) 170224 G45 0.3- 0.3+ 170401 J43 0.1- 0.1+ 160129 703 1.2+ 0.3- 170224 G45 0.2- 0.3+ 170401 J43 0.1- 0.1- 160129 703 (4.0- 0.6+) 170224 G45 0.5- 0.0 170401 J43 0.1- 0.2- 160204 J22 0.7- 0.3+ 170224 T05 0.7- 1.2+ 170401 J43 0.0 0.0 160204 J22 1.3- 0.6+ 170224 T05 1.1- 0.3+ 170401 J43 0.3+ 0.2- 160204 J22 1.4- 0.1+ 170224 T05 (2.6- 0.5+) 170519 T05 0.3+ 0.0 160212 F51 0.0 0.0 170224 T05 (2.2- 0.6-) 170519 T05 0.4+ 0.1- 160212 F51 0.0 0.0 170301 J22 0.4+ 0.2+ 170519 T05 0.8- 0.7- 160212 F51 0.0 0.1- 170301 J22 0.0 1.0+ 170519 T05 (0.8+ 2.2-) 160212 F51 0.0 0.0 170301 J22 0.4+ 1.1+ 170528 703 0.4- 0.2+ 160228 W55 0.4+ 0.1- 170320 J22 0.0 0.2+ 170528 703 0.8- 0.3+ 160228 W55 0.0 0.6- 170320 J22 0.7+ 0.2+ 170528 703 0.1- 0.2+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2017 Nov. 29