Nakano Note (Nakano wa Kangaeru noda) NK 5462 P/2025 A2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 66 observations 2024 Nov. 27 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 +/- 0.27 arc second. See an orbit in CBET 5494 (= CH 2025). Epoch = 2024 Oct. 17.0 TT T = 2024 Oct. 5.65454 +/- 0.02266 (m.e.) TT Peri. = 278.02945 +/- 0.00437 Node = 189.33144 +/- 0.00037 (2000.0) Inc. = 20.73187 +/- 0.00010 q = 3.4462679 +/- 0.0000297 AU e = 0.3226317 +/- 0.0000081 a = 5.0877312 +/- 0.0000750 AU n' = 0.08588510 +/- 0.00000190 P = 11.476 +/- 0.0002539 years (+/- 0.09 day) The predicted orbit for the 2036 return is as follows: T = 2036 Mar. 26.09760 TT Epoch = 2036 Mar. 8.0 TT Peri. = 280.81891 e = 0.3215121 Node = 189.08244 (2000.0) a = 4.9907218 AU Inc. = 20.94451 n'= 0.08840138 q = 3.3861443 AU P = 11.149 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2024/ 250102 F52 0.0 0.1+ 250206 G96 0.2+ 0.1+ 241127 W84 0.2+ 0.0 250102 F52 0.0 0.1+ 250206 G96 0.3- 0.2+ 241128 W84 0.1+ 0.2- 250107 F51 0.1+ 0.2- 250206 G96 0.2+ 0.6+ 241128 W84 0.0 0.0 250107 F51 0.1+ 0.1- 250206 G96 0.2- 0.4+ 241130 W84 0.2+ 0.1+ 250107 F51 0.1+ 0.0 250217 F51 0.1- 0.1- 241201 G96 0.1+ 0.1- 250107 F51 0.1+ 0.0 250217 F51 0.0 0.1- 241201 G96 0.1- 0.3- 250109 Q62 0.1+ 0.2+ 250217 F51 0.0 0.2- 241201 G96 0.4- 0.2- 250109 Q62 0.2- 0.2- 250217 F51 0.0 0.1- 241201 G96 0.1- 0.6- 250109 Q62 0.3- 0.2- 250224 F51 0.0 0.2- 241223 F52 0.0 0.1- 250110 X03 0.3- 0.2+ 250224 F51 0.1- 0.1- 241223 F52 0.1+ 0.0 250110 X07 0.0 0.1- 250224 F51 0.0 0.1- 241223 F52 0.0 0.1- 250110 X07 0.1+ 0.1- 250224 F51 0.0 0.1- 241227 G96 0.6+ 0.4- 250110 X03 0.1- 0.1+ 250321 F51 0.5- 0.3+ 241227 G96 0.2- 0.1+ 250110 X03 0.2+ 0.3- 250321 F51 0.0 0.0 241227 G96 0.1+ 0.3+ 250121 G00 0.1+ 0.1+ 250321 F51 0.1- 0.3- 241227 G96 0.1- 0.1+ 250121 G00 0.1- 0.5+ 250321 F51 0.1+ 0.0 241227 F52 0.1+ 0.2+ 250129 F51 0.1+ 0.1- 250325 G96 0.1- 0.1+ 241227 F52 0.2- 0.2+ 250129 F51 0.1+ 0.0 250325 G96 0.2+ 0.1+ 241227 F52 0.1- 0.1- 250129 F51 0.0 0.0 250325 G96 0.2+ 0.3+ 241227 F52 0.1- 0.2+ 250129 F51 0.1+ 0.2- 250325 G96 0.2+ 0.0 241231 F51 0.1+ 0.0 250205 215 0.7- 0.9+ 250402 W62 0.7+ 0.9- 241231 F51 0.1- 0.1- 250205 215 0.4- 0.2+ 250402 W62 0.8+ 1.0- 2025/ 250205 215 0.6+ 0.4+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2025 Oct. 9