Nakano Note (Nakano wa Kangaeru noda) NK 5463 P/2025 A3 (Tsuchinshan)
The following improved orbital elements, by S. Nakano, are from 87 observations 2024 Dec. 25 to 2025 Apr. 2. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.39 arc second. See an orbit in CBET 5495. Epoch = 2026 Mar. 21.0 TT T = 2026 Mar. 15.39192 +/- 0.17454 (m.e.) TT Peri. = 222.34241 +/- 0.01409 Node = 322.42998 +/- 0.00074 (2000.0) Inc. = 9.97582 +/- 0.00073 q = 5.7921040 +/- 0.0001962 AU e = 0.4322261 +/- 0.0000438 a = 10.2014271 +/- 0.0008596 AU n' = 0.03024912 +/- 0.00000382 P = 32.583 +/- 0.0041183 years (+/- 1.50 days) The predicted orbit for the 2058 return is as follows: T = 2058 July 19.85250 TT Epoch = 2058 July 11.0 TT Peri. = 222.26829 e = 0.4290085 Node = 322.33848 (2000.0) a = 10.1232045 AU Inc. = 9.98932 n'= 0.03060040 q = 5.7802632 AU P = 32.209 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2024/ 250112 E29 0.3- 0.2+ 250301 Q63 0.1- 0.2+ 241225 F52 0.0 0.3- 250112 E29 0.2- 0.1- 250301 Q63 0.1+ 0.1+ 241225 F52 0.0 0.0 250112 E29 0.3+ 0.0 250301 Q63 0.2- 0.2+ 241225 F52 0.2+ 0.1- 250112 E29 0.0 0.6+ 250301 Q63 0.1- 0.2+ 241225 F52 0.0 0.0 250122 G00 0.9+ 0.3+ 250302 215 0.0 1.1+ 241228 F52 0.1+ 0.1- 250122 G00 0.0 0.3- 250302 215 0.0 0.5+ 241228 F52 0.1- 0.1- 250123 Q11 0.1- 0.9+ 250302 215 0.1- 0.1- 241228 F52 0.0 0.1+ 250123 Q11 0.1+ 0.9+ 250302 K77 0.1+ 0.2+ 241228 F52 0.5+ 0.1+ 250125 Q62 0.4- 0.6+ 250302 K77 0.2+ 0.4+ 241229 F51 0.1+ 0.5+ 250125 Q62 0.6- 0.8+ 250305 Q63 0.1- 0.0 241229 F51 0.4- 0.8+ 250128 P13 0.5- 0.2+ 250305 Q63 0.4+ 0.3- 241229 F51 0.0 0.1- 250128 P13 0.7+ 0.1+ 250305 Q63 0.1+ 0.1- 241229 F51 0.4- 0.2+ 250217 Q64 0.3- 0.1+ 250305 Q63 0.1- 0.1+ 2025/ 250217 Q64 0.0 0.2- 250305 Q63 0.2+ 0.1- 250104 F52 0.0 0.0 250217 Q64 0.0 0.3- 250305 Q63 0.1+ 0.3- 250104 F52 0.0 0.1- 250223 K77 0.1+ 1.5- 250305 Q63 0.1- 0.0 250104 F52 0.1- 0.3- 250223 K77 1.0+ 0.8- 250305 Q63 0.1+ 0.3- 250105 D29 0.0 0.0 250227 W85 0.0 0.1+ 250324 F51 0.2+ 0.1+ 250105 D29 0.3+ 1.2- 250227 W85 0.1+ 0.1- 250324 F51 0.2- 0.3+ 250105 D29 0.1+ 1.3- 250227 W85 0.1- 0.1- 250324 F51 0.2+ 0.3- 250107 088 0.6+ 0.3- 250227 W85 0.1- 0.0 250324 F51 0.2+ 0.1- 250107 088 0.5+ 0.3- 250227 W85 0.1+ 0.0 250329 F51 0.1- 0.2+ 250109 N89 0.9+ 1.0- 250227 W85 0.0 0.1- 250329 F51 0.1- 0.0 250109 N89 1.4+ 1.1- 250227 W85 0.1+ 0.1- 250329 F51 0.0 0.0 250111 L06 0.7- 0.8- 250227 W85 0.1+ 0.0 250329 F51 0.1- 0.0 250111 L06 0.7- 0.2- 250301 Q63 0.1- 0.1+ 250402 F51 0.5+ 0.1- 250111 L06 0.3- 0.5- 250301 Q63 0.1- 0.2+ 250402 F51 0.3- 0.0 250112 M45 0.2- 0.6- 250301 Q63 0.1+ 0.1+ 250402 F51 0.4- 0.1+ 250112 M45 0.1+ 0.4- 250301 Q63 0.2- 0.0 250402 F51 0.1+ 0.0 250112 M45 0.2+ 0.5- 250301 Q63 0.0 0.2+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2025 Oct. 9