Nakano Note (Nakano wa Kangaeru noda) NK 4081 A/2019 O2
The following improved orbital elements, by S. Nakano, are from 62 observations 2019 July 24 to 2020 Mar. 23. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.26 arc second. See the previous orbit in NK 4019 (= HICQ 2020). Epoch = 2023 Apr. 6.0 TT T = 2023 Apr. 7.30339 +/- 0.05568 (m.e.) TT Peri. = 129.64761 +/- 0.00526 Node = 48.26315 +/- 0.00026 (2000.0) Inc. = 93.30726 +/- 0.00005 q = 9.6820819 +/- 0.0004823 AU e = 0.8328947 +/- 0.0000830 1/a = +0.0172592 +/- 0.0000086 1/AU origin = +0.017219 (Q= 7) future = +0.017255 a = 57.94 AU P = 441.0 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 190730 A77 0.2+ 1.0- 190811 568 0.0 0.1- 190724 F51 0.1+ 0.0 190730 A77 0.2- 0.6+ 190905 461 0.1- 0.5+ 190724 F51 0.1- 0.1+ 190730 A77 0.4- 0.1- 190905 461 0.1- 0.3+ 190724 F51 0.0 0.0 190731 711 1.2- 0.6+ 190905 461 0.1+ 0.3+ 190724 F51 0.0 0.1- 190731 711 (3.1- 1.1+) 190906 C95 0.9+ 0.7+ 190724 L01 0.4- 0.3- 190731 711 (3.2- 0.9+) 190906 C95 0.7- 0.1+ 190724 L01 0.1- 0.4- 190731 G40 0.5- 0.0 190919 461 0.2- 0.0 190724 L01 0.2- 0.0 190731 G40 0.0 0.3+ 190919 461 0.5- 0.6- 190724 L01 0.1+ 0.0 190801 G40 0.7- 0.7+ 191023 461 0.1+ 0.1+ 190725 H01 0.0 0.2- 190804 587 0.5- 0.0 191023 461 0.0 0.1+ 190725 H01 0.1+ 0.1+ 190804 K88 0.1+ 0.2+ 191023 461 0.1- 0.1+ 190725 H21 0.1- 0.3- 190804 587 0.3- 0.1+ 191124 461 0.2- 0.2+ 190725 H21 0.0 0.2- 190804 587 0.5- 0.1+ 191124 461 0.1- 0.2+ 190725 A71 0.2+ 0.3+ 190804 K88 0.1+ 0.1+ 191124 461 0.0 0.0 190725 A71 0.2- 0.3- 190806 K88 0.1- 0.3+ 191229 215 0.4+ 1.3+ 190727 F51 0.1+ 0.0 190806 K88 0.2+ 0.2+ 191229 215 0.2+ 0.7- 190727 F51 0.1+ 0.2+ 190807 K88 0.3+ 0.4+ 191229 215 0.3+ 0.7- 190727 F51 0.1+ 0.0 190811 568 0.0 0.1- 2020/ 190727 F51 0.0 0.2- 190811 568 0.0 0.1- 200322 568 0.0 0.0 190728 U69 0.6+ 0.8+ 190811 568 0.0 0.0 200322 568 0.0 0.0 190728 U69 0.1+ 0.4+ 190811 568 0.0 0.1- 200323 568 0.1- 0.0 190730 A77 0.1+ 0.2- 190811 568 0.0 0.1- 200323 568 0.0 0.0 ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Apr. 11