Nakano Note (Nakano wa Kangaeru noda) NK 3765 P/2018 P3 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 144 observations 2018 Aug. 8 to Nov. 30. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.47 arc second. Epoch = 2018 Oct. 9.0 TT T = 2018 Oct. 9.46836 +/- 0.00584 (m.e.) TT Peri. = 305.88955 +/- 0.00369 Node = 59.20847 +/- 0.00081 (2000.0) Inc. = 8.90955 +/- 0.00014 q = 1.7564910 +/- 0.0000107 AU e = 0.4158914 +/- 0.0000113 a = 3.0071307 +/- 0.0000609 AU n' = 0.18900601 +/- 0.00000574 P = 5.215 +/- 0.0001584 years (+/- 0.06 day) The predicted orbit for the 2023 return is as follows: T = 2023 Dec. 26.74782 TT Epoch = 2024 Jan. 11.0 TT Peri. = 306.01380 e = 0.4172360 Node = 59.15891 (2000.0) a = 3.0041935 AU Inc. = 8.91513 n'= 0.18928327 q = 1.7507359 AU P = 5.207 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2018/ 180912 A71 0.1- 0.3- 181006 703 0.3- 0.8+ 180808 F51 0.3+ 0.1+ 180912 A71 0.3- 0.5+ 181006 703 0.1+ 0.6+ 180808 F51 0.2+ 0.1+ 180913 B74 0.5- 0.0 181007 W88 0.5+ 0.0 180808 F51 0.2+ 0.0 180913 B74 0.4- 0.1- 181007 W88 0.1+ 0.5- 180808 F51 0.3+ 0.1+ 180913 B74 0.0 0.1+ 181010 703 0.5- 1.7+ 180810 734 0.2+ 0.1+ 180914 T08 0.6- 0.2+ 181010 703 0.1- 1.0+ 180810 734 0.0 0.2+ 180914 T08 0.8- 0.7+ 181010 703 0.4+ 0.3+ 180810 734 0.1+ 0.3+ 180914 T08 1.0- 0.4+ 181010 703 0.5+ 0.5+ 180810 568 0.3+ 0.0 180914 T08 0.5- 0.1+ 181010 F52 0.1- 0.7- 180810 568 0.3+ 0.0 180916 G96 0.4- 0.1+ 181010 F52 0.1- 0.7- 180810 568 0.3+ 0.0 180916 G96 0.2- 0.0 181010 F52 0.1- 0.7- 180812 Q62 0.2- 0.6- 180916 G96 0.3- 0.0 181010 T05 0.2+ 0.4+ 180812 Q62 0.3- 0.3- 180916 G96 0.2- 0.0 181010 T05 0.3+ 0.4+ 180813 L01 0.2+ 0.1- 180916 T05 0.2- 0.1+ 181010 F52 0.1- 0.7- 180813 L01 0.1- 0.6- 180916 T05 0.5- 0.1+ 181010 T05 0.1+ 0.4+ 180814 691 0.7- 0.4+ 180916 T05 0.5- 0.3+ 181010 T05 0.4+ 0.9+ 180814 691 0.8- 0.2+ 180916 T05 0.5- 0.2- 181010 A71 0.7+ 0.2- 180814 691 1.1- 0.0 180920 T05 0.3- 0.1+ 181010 A71 1.1+ 0.3- 180817 104 0.7- 0.1- 180920 T05 0.5- 0.2+ 181010 A71 1.0+ 0.3- 180817 104 0.0 0.4- 180920 T05 0.3- 0.1+ 181010 A71 1.0+ 0.5- 180819 Q11 0.9- 0.8- 180920 T05 0.1- 0.0 181011 T05 0.2+ 0.3+ 180819 Q11 0.8- 0.7- 180921 703 0.3- 0.3+ 181011 T05 0.0 0.2+ 180819 Q11 1.0- 0.7- 180921 703 0.5- 0.0 181011 T05 0.1- 0.4+ 180821 215 0.1- 0.4+ 180921 703 0.5- 0.5+ 181011 T05 0.8+ 0.2+ 180821 215 0.4- 0.2- 180921 703 0.8- 0.1+ 181011 T05 0.2+ 0.5+ 180821 215 0.3- 0.7- 180928 250 0.0 0.9- 181011 T05 0.9+ 0.3+ 180906 T08 0.1- 0.0 180928 250 0.1- 0.9- 181012 T08 0.3+ 1.2+ 180906 T08 0.8- 0.5+ 180928 250 0.0 0.9- 181012 T08 0.3+ 0.8+ 180906 T08 0.1+ 0.2+ 180929 703 0.2+ 0.8+ 181012 T08 0.5+ 0.7+ 180906 T08 0.1- 0.2- 180929 703 0.3- 0.6+ 181012 T08 0.4+ 0.8+ 180908 I52 0.0 0.4- 180929 703 0.3- 0.6+ 181012 D29 0.2+ 0.5+ 180908 I52 0.1- 0.4- 180929 703 0.0 0.6+ 181012 D29 0.1+ 0.5+ 180908 I52 0.1- 0.1- 180930 T08 0.3- 1.1+ 181012 D29 0.4+ 0.5+ 180908 I52 0.3- 0.3- 180930 T08 0.2- 0.4+ 181014 T05 0.4+ 0.1+ 180908 T05 0.5- 0.2+ 180930 T08 0.2- 0.3+ 181014 T05 0.3+ 0.5+ 180908 T05 0.4- 0.1- 180930 T08 0.0 0.6+ 181014 T05 0.5+ 0.7+ 180908 T05 0.3- 0.3+ 181002 T05 0.2- 0.1+ 181014 T05 0.4+ 0.5+ 180908 T05 0.4- 0.0 181002 T05 0.1+ 0.1+ 181028 367 (2.8+ 0.1+) 180910 I52 0.2- 0.1- 181002 T05 0.0 0.4+ 181028 367 (2.7+ 0.0 ) 180910 I52 0.2- 0.0 181002 T05 0.1- 0.0 181028 367 (2.5+ 1.1-) 180910 I52 0.4- 0.0 181004 T08 0.2- 0.4+ 181029 349 0.3+ 0.5+ 180910 I52 0.2- 0.0 181004 T08 0.0 0.4+ 181029 349 0.2+ 0.9+ 180910 T08 0.9- 0.1+ 181004 T08 0.1+ 0.7+ 181110 Q11 0.4+ 0.2+ 180910 T08 0.2- 0.4- 181004 T08 0.4+ 0.2+ 181110 Q11 0.6+ 0.2+ 180910 T08 0.8- 0.2- 181004 T08 0.2+ 0.5+ 181110 Q11 0.6+ 0.2+ 180910 T08 0.8- 0.6+ 181004 T08 0.2- 0.7+ 181130 Q11 1.2+ 0.9+ 180911 K77 0.1- 0.4+ 181004 T08 0.2+ 0.7+ 181130 Q11 1.2+ 0.9+ 180911 K77 0.3- 0.1+ 181004 T08 0.1- 0.4+ 181130 Q11 0.7+ 0.6+ 180911 K77 0.8+ 0.1- 181006 703 0.1- 0.6+ 180912 A71 0.8- 1.0- 181006 703 0.2- 0.6+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2018 Dec. 7

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