Nakano Note (Nakano wa Kangaeru noda) NK 4919 P/2022 O2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 85 observations 2022 June 9 to 2023 Jan. 21. 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 orbits in CBET 5160, NK 4847 and NK 4889. Epoch = 2023 Jan. 16.0 TT T = 2023 Jan. 7.09257 +/- 0.00023 (m.e.) TT Peri. = 48.63478 +/- 0.00019 Node = 330.49659 +/- 0.00008 (2000.0) Inc. = 9.42449 +/- 0.00004 q = 1.7568417 +/- 0.0000036 AU e = 0.7217403 +/- 0.0000107 a = 6.3136766 +/- 0.0002429 AU n' = 0.06212703 +/- 0.00000359 P = 15.864 +/- 0.0009156 years (+/- 0.33 day) The predicted orbit for the 2038 return is as follows: T = 2038 Oct. 6.68848 TT Epoch = 2038 Oct. 24.0 TT Peri. = 48.68881 e = 0.7214164 Node = 330.37977 (2000.0) a = 6.2675286 AU Inc. = 9.41911 n'= 0.06281445 q = 1.7460310 AU P = 15.691 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2022/ 220824 215 0.0 1.5+ 221119 703 (2.9- 0.3-) 220609 F52 0.4+ 0.5+ 220826 Q62 0.1- 0.3- 221121 G96 0.2- 0.0 220705 F52 0.2+ 0.3- 220826 Q62 0.2- 0.3- 221121 G96 0.2- 0.0 220705 F52 0.1+ 0.1- 220829 X03 0.8+ 0.9+ 221121 G96 0.2- 0.3- 220705 F52 0.2- 0.2- 220829 X03 0.2+ 0.5+ 221121 G96 0.1- 0.1+ 220705 F52 0.1- 0.2+ 220829 X03 0.4+ 0.5+ 221122 703 1.5+ 0.3- 220721 F52 0.2- 0.1+ 220920 F51 0.1+ 0.2- 221122 703 0.1- 1.0+ 220721 F52 0.2- 0.3+ 220920 F51 0.0 0.2- 221122 703 1.0- 0.0 220721 F52 0.4- 0.0 220920 F51 0.0 0.2- 221205 A77 0.1+ 0.6+ 220723 F52 0.0 0.1- 220920 F51 0.0 0.2- 221205 A77 0.8+ 0.6+ 220723 F52 0.2+ 0.0 220925 F52 0.0 0.1- 221212 703 0.3+ 0.4+ 220801 F52 0.1- 0.1+ 220925 F52 0.1- 0.1- 221212 703 0.2- 0.5+ 220801 F52 0.1- 0.1+ 220925 F52 0.0 0.1- 221212 703 (2.1+ 1.6+) 220801 F52 0.1- 0.0 220925 F52 0.0 0.0 221217 703 1.0+ 0.6- 220817 F52 0.3+ 0.2+ 221020 W76 0.4- 0.1- 221217 703 1.1+ 0.9+ 220817 F52 0.0 0.2+ 221020 W76 0.2- 0.4- 221217 703 1.4- 0.0 220817 F52 0.1+ 0.0 221020 Q11 0.4+ 0.2+ 221222 703 0.4- 0.2- 220817 F52 0.1+ 0.0 221020 Q11 0.3+ 0.4+ 221222 703 0.5+ 0.3+ 220817 M21 0.3+ 0.2- 221020 Q11 0.1+ 0.3+ 221222 703 0.2+ 0.5+ 220817 M21 0.4+ 0.1+ 221024 F51 0.6- 0.3- 221222 703 0.8+ 0.3+ 220818 568 0.1+ 0.1- 221024 F51 0.6- 0.3- 221224 A77 0.5- 0.3+ 220818 568 0.1+ 0.1- 221024 F51 0.5- 0.3- 221224 A77 0.2- 0.5+ 220818 568 0.1+ 0.1- 221026 215 0.0 0.2- 221224 A77 0.5- 0.5+ 220822 F51 0.1- 0.0 221026 215 0.2+ 0.0 2023/ 220822 F51 0.2+ 0.0 221026 215 0.4+ 0.4+ 230118 D29 1.5- 0.8- 220822 F51 0.1+ 0.0 221118 Q11 0.7- 0.1+ 230118 D29 1.1- 0.4- 220824 Q62 0.5+ 0.5- 221118 Q11 0.7- 0.1+ 230118 D29 1.8- 0.0 220824 Q62 0.7+ 0.6- 221118 Q11 0.5- 0.0 230121 703 (2.9+ 0.6+) 220824 215 0.4- 0.1- 221119 703 1.6+ 0.0 230121 703 0.6+ 0.6- 220824 215 0.1- 0.6+ 221119 703 1.3- 0.1- 230121 703 1.2- 0.6- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2023 Jan. 29