Nakano Note (Nakano wa Kangaeru noda) NK 4847 P/2022 O2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 54 observations 2022 June 9 to Oct. 26. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.34 arc second. See an orbit in CBET 5160. Epoch = 2023 Jan. 16.0 TT T = 2023 Jan. 7.09443 +/- 0.00040 (m.e.) TT Peri. = 48.63510 +/- 0.00015 Node = 330.49640 +/- 0.00007 (2000.0) Inc. = 9.42463 +/- 0.00004 q = 1.7568532 +/- 0.0000060 AU e = 0.7217535 +/- 0.0000080 a = 6.3140172 +/- 0.0001833 AU n' = 0.06212200 +/- 0.00000270 P = 15.866 +/- 0.0006907 years (+/- 0.25 day) The predicted orbit for the 2038 return is as follows: T = 2038 Oct. 7.15234 TT Epoch = 2038 Oct. 24.0 TT Peri. = 48.68909 e = 0.7214298 Node = 330.37955 (2000.0) a = 6.2678799 AU Inc. = 9.41925 n'= 0.06280917 q = 1.7460443 AU P = 15.692 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2022/ 220817 M21 0.3+ 0.1+ 220920 F51 0.1- 0.1- 220609 F52 0.3+ 0.5+ 220818 568 0.0 0.1- 220920 F51 0.0 0.1- 220705 F52 0.3+ 0.3- 220818 568 0.0 0.1- 220925 F52 0.0 0.1+ 220705 F52 0.1+ 0.2- 220818 568 0.0 0.1- 220925 F52 0.0 0.0 220705 F52 0.2- 0.2- 220822 F51 0.2- 0.0 220925 F52 0.0 0.0 220705 F52 0.1- 0.1+ 220822 F51 0.1+ 0.1- 220925 F52 0.0 0.1+ 220721 F52 0.2- 0.1+ 220822 F51 0.0 0.0 221020 W76 0.0 0.2+ 220721 F52 0.2- 0.2+ 220824 Q62 0.4+ 0.6- 221020 W76 0.2+ 0.1- 220721 F52 0.3- 0.1- 220824 Q62 0.6+ 0.6- 221020 Q11 0.8+ 0.5+ 220723 F52 0.1+ 0.1- 220824 215 0.5- 0.2- 221020 Q11 0.7+ 0.6+ 220723 F52 0.3+ 0.1- 220824 215 0.2- 0.6+ 221020 Q11 0.5+ 0.6+ 220801 F52 0.1- 0.1+ 220824 215 0.1- 1.5+ 221024 F51 0.1- 0.1- 220801 F52 0.1- 0.0 220826 Q62 0.2- 0.3- 221024 F51 0.1- 0.1- 220801 F52 0.1- 0.0 220826 Q62 0.3- 0.3- 221024 F51 0.1- 0.0 220817 F52 0.3+ 0.2+ 220829 X03 0.7+ 0.9+ 221026 215 0.5+ 0.1+ 220817 F52 0.1- 0.1+ 220829 X03 0.1+ 0.5+ 221026 215 0.7+ 0.4+ 220817 F52 0.0 0.1- 220829 X03 0.3+ 0.5+ 221026 215 0.9+ 0.7+ 220817 F52 0.0 0.1- 220920 F51 0.1+ 0.1- 220817 M21 0.3+ 0.2- 220920 F51 0.1- 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2022 Nov. 11