Nakano Note (Nakano wa Kangaeru noda) NK 5383 P/2024 R2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 45 observations 2024 Aug. 9 to Oct. 31. 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. See an orbit in CBET 5443. Epoch = 2024 Oct. 17.0 TT T = 2024 Oct. 1.98108 +/- 0.05812 (m.e.) TT Peri. = 203.98191 +/- 0.01870 Node = 193.05953 +/- 0.00111 (2000.0) Inc. = 15.11953 +/- 0.00069 q = 2.3037312 +/- 0.0000578 AU e = 0.2682570 +/- 0.0000728 a = 3.1482789 +/- 0.0003232 AU n' = 0.17643887 +/- 0.00002716 P = 5.586 +/- 0.0008603 years (+/- 0.31 day) The predicted orbit for the 2030 return is as follows: T = 2030 Apr. 28.85720 TT Epoch = 2030 Apr. 9.0 TT Peri. = 203.53591 e = 0.2693215 Node = 192.96439 (2000.0) a = 3.1462590 AU Inc. = 15.12751 n'= 0.17660881 q = 2.2989037 AU P = 5.581 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2024/ 240904 U94 0.0 0.2- 240907 V21 0.3- 0.9- 240809 F52 0.1- 0.1+ 240904 U94 0.2+ 0.0 240907 V21 1.6- 1.2- 240809 F52 0.2- 0.1+ 240905 V21 1.1+ 1.0- 240907 G96 0.4+ 0.8+ 240809 F52 0.1- 0.1+ 240905 V21 0.7- 0.2- 240907 V21 0.0 0.5- 240903 F52 0.5+ 0.1- 240906 M45 1.0- 0.1+ 240907 G96 0.1+ 0.1+ 240903 F52 0.3+ 0.2+ 240906 M45 1.3- 0.3+ 240907 G96 0.1+ 0.2- 240903 F52 0.3+ 0.3- 240906 M45 1.5- 0.4+ 240907 V21 0.4+ 1.0- 240903 F52 0.2+ 0.2- 240907 595 1.0- 0.1- 240907 G96 0.4- 0.1+ 240903 F52 0.6+ 0.1+ 240907 595 1.1- 0.1+ 241024 G96 0.1+ 0.9+ 240903 F52 0.7+ 0.0 240907 G00 0.2- 0.7- 241024 G96 0.9- 0.3- 240904 Z31 0.3+ 0.1- 240907 G00 0.1+ 0.7- 241024 G96 0.5+ 0.5+ 240904 Z31 0.5+ 0.1- 240907 595 (2.1- 0.3-) 241024 G96 0.8+ 0.4- 240904 Z31 0.5+ 0.1- 240907 G00 0.7- 0.1- 241031 G96 0.1- 0.3+ 240904 W62 0.7+ 0.1- 240907 L06 0.1- 0.8- 241031 G96 0.7- 0.6- 240904 W62 1.1+ 0.2+ 240907 L06 0.3- 0.5- 241031 G96 0.5+ 0.2- 240904 W62 0.8+ 0.2+ 240907 L06 0.4- 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2025 Mar. 1