Nakano Note (Nakano wa Kangaeru noda) NK 4854 P/2018 L5 (Leonard)
The following improved orbital elements, by S. Nakano, are from 192 observations 2018 June 8 to 2019 Dec. 19. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.57 arc second. Orbit depends upon one night observations on 2019 Dec.. The previous orbits in NK 3700 and NK 3715 which orbit gives T = 2025 Apr. 4.3403 TT. Epoch = 2018 May 2.0 TT T = 2018 May 4.48329 +/- 0.00079 (m.e.) TT Peri. = 93.63950 +/- 0.00058 Node = 219.15817 +/- 0.00041 (2000.0) Inc. = 2.20916 +/- 0.00001 q = 2.3033491 +/- 0.0000076 AU e = 0.3644126 +/- 0.0000012 a = 3.6239691 +/- 0.0000138 AU n' = 0.14286549 +/- 0.00000081 P = 6.899 +/- 0.0000393 years The predicted orbit for the 2025 return is as follows: T = 2025 Apr. 3.90932 TT Epoch = 2025 Mar. 26.0 TT Peri. = 93.94643 e = 0.3636003 Node = 219.02588 (2000.0) a = 3.6281490 AU Inc. = 2.20946 n'= 0.14261868 q = 2.3089529 AU P = 6.911 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2018/ 180812 A71 0.2- 0.6- 180914 585 0.6- 0.3+ 180608 I41 0.5+ 0.9+ 180812 A71 0.3+ 0.6- 180914 585 0.3- 0.4+ 180608 I41 1.7+ 0.9+ 180813 A71 0.4+ 0.1- 180914 585 0.2- 0.8+ 180613 I41 1.1+ 0.7- 180813 F51 0.3+ 0.1- 180914 585 0.5- 0.3+ 180613 I41 0.1+ 0.7+ 180813 F51 0.0 0.1- 180914 585 0.5- 0.2+ 180614 G96 0.4+ 0.1+ 180813 F51 0.3+ 0.0 180914 585 0.5- 0.2+ 180614 G96 0.5- 0.2- 180813 F51 0.0 0.2- 180914 585 0.3- 0.4+ 180614 G96 0.5+ 0.0 180818 461 0.3- 0.0 180914 585 0.4- 0.4+ 180614 G96 0.1- 0.3+ 180818 461 0.6- 0.0 180917 T05 0.0 0.2+ 180615 H36 0.3- 0.5- 180818 461 0.8- 0.2+ 180917 T05 0.4- 0.3+ 180615 H36 0.5- 0.0 180819 461 0.5- 0.3+ 180917 T05 0.7- 0.4+ 180615 H36 0.0 1.1- 180819 461 0.2- 0.0 180917 T05 0.1- 0.3+ 180615 Q62 0.5+ 0.6+ 180819 461 0.3- 0.1- 180917 T05 0.5- 0.3+ 180615 Q62 0.8+ 0.5+ 180821 J22 0.9- 0.8+ 180917 T05 0.4- 0.6- 180615 Q62 0.6+ 0.5+ 180821 J22 0.7- 0.6- 180917 T05 0.3- 0.1+ 180615 Q62 0.3+ 0.5+ 180821 J22 0.5- 1.0- 180917 T05 0.5- 0.1- 180616 W96 0.1+ 0.7- 180821 F51 0.0 0.1- 180918 703 1.9- 0.6+ 180616 W96 0.1+ 0.1- 180821 F51 0.1- 0.1- 180918 703 (2.4- 0.3-) 180616 W96 0.7- 0.0 180821 F51 0.2+ 0.1- 180918 703 (2.2- 0.5+) 180616 W96 0.2+ 0.5+ 180821 F51 0.0 0.1- 180918 703 1.8- 0.5+ 180617 G40 1.2- 0.0 180901 703 0.7- 0.5+ 180919 T08 0.4- 0.7+ 180617 G40 0.5- 1.4- 180901 703 0.9- 0.0 180919 T08 0.0 1.0- 180617 691 0.7+ 0.4+ 180901 703 1.5- 0.1+ 180919 T08 0.9- 0.2- 180617 691 0.8- 1.2- 180902 V03 1.2- 0.2+ 180919 T08 0.9- 0.2+ 180617 691 0.1- 0.4+ 180902 V03 1.1- 0.2+ 180921 461 0.2- 0.3+ 180618 I47 0.7+ 1.5- 180902 V03 0.1- 0.1+ 180921 461 0.2- 0.0 180618 I47 0.1+ 1.1- 180902 V03 0.1- 0.1- 180929 703 1.0- 0.6- 180618 I52 0.3- 0.2+ 180903 585 0.3- 0.6+ 180929 703 0.7+ 0.0 180618 I52 0.1- 0.8+ 180903 585 0.4- 0.6+ 180929 T05 0.4- 0.7- 180618 I52 0.3+ 0.3- 180903 585 0.5- 0.6+ 180929 T05 0.2+ 0.3+ 180618 I52 0.3- 0.4- 180903 585 0.3- 0.5+ 180929 T05 0.3- 0.4+ 180619 I52 0.5+ 0.1+ 180903 585 0.4- 0.6+ 180929 T05 0.4+ 0.0 180619 I52 0.1+ 0.2- 180903 585 0.5- 0.6+ 181001 J22 0.2+ 0.2+ 180619 I52 1.2- 0.1- 180903 585 0.5- 0.7+ 181001 J22 0.2+ 0.2+ 180619 I52 0.0 0.6- 180903 585 0.4- 0.6+ 181001 J22 0.0 0.3+ 180621 L01 0.3- 0.2+ 180903 585 0.5- 0.5+ 181003 T05 0.2+ 0.1+ 180621 L01 0.2+ 0.1- 180903 585 0.3- 0.6+ 181003 T05 0.2+ 1.9- 180621 L01 0.1- 0.9- 180903 585 0.5- 0.6+ 181003 T05 0.6- 0.2+ 180621 I52 0.5- 0.0 180903 585 0.2+ 0.5+ 181003 T05 0.4- 0.3+ 180621 I52 0.7- 1.0- 180904 J22 0.0 0.1- 181004 F52 0.2+ 0.0 180621 I52 0.5- 0.4- 180904 J22 0.6+ 0.1+ 181004 F52 0.3+ 0.0 180621 I52 0.5- 1.2- 180904 J22 0.0 0.1- 181004 F52 0.2+ 0.0 180622 291 1.1- 0.3+ 180907 703 0.8- 0.1- 181004 F52 0.2+ 0.0 180622 291 0.6+ 0.7+ 180907 703 1.9- 1.4- 181006 G96 (1.4+ 2.4+) 180622 291 1.0- 0.1+ 180907 703 (2.3- 0.8-) 181006 G96 0.5+ 0.8+ 180622 I52 0.6- 0.5- 180907 703 (3.3- 1.6-) 181006 G96 0.9+ 1.0+ 180622 I52 0.7- 0.5- 180908 D29 1.3- 0.2- 181006 G96 0.5+ 0.3+ 180622 I52 0.8- 0.5- 180908 D29 1.1- 0.0 181009 461 0.4+ 0.2+ 180623 I52 0.6- 0.4- 180908 D29 (2.4- 0.5-) 181009 461 0.1- 0.2+ 180623 I52 0.0 0.1- 180911 Q62 0.2- 0.1- 181009 461 0.1+ 0.4+ 180623 I52 0.7- 0.6- 180911 Q62 0.1+ 0.4- 181011 J22 0.3+ 0.1+ 180623 I52 0.7- 0.2- 180912 G96 1.5- 0.8- 181011 J22 0.1+ 0.2+ 180625 I52 (2.1+ 1.6+) 180912 G96 (2.0- 0.6-) 181011 J22 0.1+ 0.2+ 180625 I52 1.2+ 0.2+ 180912 G96 1.2- 0.5- 181015 F52 0.2+ 0.1+ 180625 I52 0.6- 0.4+ 180912 G96 0.8- 0.4- 181015 F52 0.0 0.2- 180625 I52 0.6- 0.2+ 180912 703 (3.4- 0.2-) 181015 F52 0.3+ 0.1+ 180701 I52 0.3- 0.5- 180912 703 (2.3- 0.5-) 181015 F52 0.1+ 0.3+ 180701 I52 0.4- 0.1+ 180912 703 0.7- 0.6- 181015 T05 0.4+ 0.1+ 180701 I52 1.7- 0.6- 180913 I52 0.3- 0.0 181015 T05 0.3+ 1.2+ 180709 215 1.5- 0.4- 180913 I52 0.8- 0.3- 181015 T05 0.1- 0.4+ 180709 215 1.8- 0.7- 180913 I52 0.4- 0.2- 181015 T05 0.7+ 0.6- 180709 215 (2.0- 0.1-) 180913 I52 1.2- 1.2- 181214 G96 0.0 0.1+ 180713 F51 0.5+ 0.5+ 180914 585 0.2- 0.2+ 181214 G96 0.8+ 0.2- 180713 F51 0.4+ 0.1+ 180914 585 0.0 0.6+ 181214 G96 (3.0+ 0.3+) 180713 F51 0.4+ 0.0 180914 585 0.3- 0.2- 2019/ 180719 F52 0.3+ 0.1- 180914 585 0.4- 0.4+ 191219 F51 0.2- 0.2- 180719 F52 0.4+ 0.0 180914 585 0.1- 0.2- 191219 F51 0.1+ 0.2- 180719 F52 0.4+ 0.2- 180914 585 0.2- 0.6+ 191219 F51 0.2+ 0.1- 180719 F52 0.4+ 0.1- 180914 585 0.5- 0.5+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2022 Dec. 1