Nakano Note (Nakano wa Kangaeru noda) NK 4122 A/2019 T1
The following improved orbital elements, by S. Nakano, are from 57 observations 2017 Sept. 16 to 2020 May 19. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.29 arc second. See an orbit in HICQ 2020. Epoch = 2021 Jan. 26.0 TT T = 2021 Jan. 14.26602 +/- 0.00202 (m.e.) TT Peri. = 91.03132 +/- 0.00043 Node = 6.95382 +/- 0.00001 (2000.0) Inc. = 120.86968 +/- 0.00003 q = 4.2815973 +/- 0.0000213 AU e = 0.8880761 +/- 0.0000075 1/a = +0.0261407 +/- 0.0000018 1/AU a = 38.25 AU P = 236.6 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 190629 F51 0.0 0.0 191024 G96 0.1- 0.2- 170916 F51 1.0- 0.5- 190917 F51 0.2+ 0.1- 191024 G96 0.4- 0.0 170916 F51 0.2+ 0.3- 190917 F51 0.3+ 0.0 191024 G96 0.2- 0.1+ 170916 F51 0.1- 0.2- 190917 F51 0.1- 0.1- 191024 G96 0.1+ 0.1- 170925 F51 0.3+ 0.0 190928 G96 0.2- 0.1+ 191030 H06 0.3+ 0.1- 170925 F51 0.3+ 0.1+ 190928 G96 0.2- 0.1+ 191030 H06 0.2- 0.1- 170925 F51 0.0 0.2+ 190928 G96 0.2- 0.1- 191030 H06 0.4- 0.1- 170925 F51 0.4- 0.3- 190928 G96 0.2- 0.1- 191124 461 0.4- 0.2- 170925 F51 0.2+ 0.7+ 191008 F52 0.1+ 0.1+ 191124 461 0.4- 0.1- 170925 F51 0.2+ 0.0 191008 F52 0.3- 0.1+ 2020/ 170926 F51 0.2+ 0.0 191008 F52 0.1- 0.1+ 200426 A77 0.8- 0.3+ 170926 F51 0.1+ 0.0 191009 I52 0.1+ 0.9- 200426 A77 0.1- 0.5+ 170926 F51 0.2- 0.1+ 191009 I52 0.2+ 0.3- 200426 A77 0.4+ 0.4+ 2018/ 191009 I52 0.3- 0.5- 200503 G96 0.0 0.4- 180818 F51 0.0 0.0 191009 094 0.9+ 0.4+ 200503 G96 0.5- 0.2- 180818 F51 0.0 0.1- 191009 094 0.9+ 0.3+ 200503 G96 0.1- 0.1- 180818 F51 0.1- 0.1+ 191009 094 0.6+ 0.1+ 200503 G96 0.3- 0.1- 180818 F51 0.1+ 0.2+ 191009 Z84 0.0 0.1- 200519 568 0.1+ 0.0 2019/ 191009 Z84 0.0 0.0 200519 568 0.1+ 0.0 190629 F51 0.0 0.1+ 191009 Z84 0.2- 0.2+ 190629 F51 0.0 0.0 191009 Z84 0.1- 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 June 2