Nakano Note (Nakano wa Kangaeru noda) NK 3552 C/2017 AB5 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 40 observations 2017 Jan. 3 to 2018 Jan. 7. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.28 arc second. Epoch = 2018 Feb. 11.0 TT T = 2018 Feb. 17.42643 +/- 0.27817 (m.e.) TT Peri. = 78.37218 +/- 0.01445 Node = 42.69144 +/- 0.00065 (2000.0) Inc. = 32.43126 +/- 0.00014 q = 9.2168163 +/- 0.0002299 AU e = 0.9998400 +/- 0.0000621 1/a = +0.0000174 +/- 0.0000067 1/AU origin = +0.000060 (Q= 8) future = +0.000169 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 170106 926 0.0 0.2+ 180106 H36 0.5- 0.1- 170103 F51 0.0 0.2- 170107 926 0.3+ 0.1- 180106 926 0.5- 0.2+ 170103 F51 0.0 0.1- 170107 926 0.2- 0.2+ 180106 926 0.3- 0.6+ 170103 F51 0.2+ 0.1- 170107 926 0.6- 0.2- 180106 H36 0.6- 0.0 170103 F51 0.1- 0.0 171209 F51 0.1- 0.1- 180106 J95 0.0 0.4- 170103 F51 0.0 0.0 171209 F51 0.0 0.1- 180106 J95 0.7+ 0.0 170103 F51 0.1+ 0.1- 171209 F51 0.1+ 0.1+ 180106 J95 0.2+ 0.5- 170103 F51 0.0 0.0 2018/ 180107 K88 0.4- 0.5+ 170104 F51 0.0 0.2+ 180105 F51 0.1+ 0.2- 180107 K88 0.2- 0.5+ 170104 F51 0.0 0.1- 180105 F51 0.2+ 0.3+ 180107 K88 0.3- 0.1+ 170104 F51 0.1- 0.1+ 180105 F51 0.1+ 0.2- 180107 J95 0.5- 0.6- 170104 F51 0.0 0.2+ 180105 F51 0.0 0.2+ 180107 J95 0.2- 0.4- 170106 926 0.1- 0.0 180106 H36 0.7- 0.3- 180107 J95 0.4- 0.1+ 170106 926 0.4+ 0.3+ 180106 926 0.0 0.3- 180107 J95 0.1+ 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Late edition Syuichi Nakano 2018 Jan. 12