Nakano Note (Nakano wa Kangaeru noda) NK 5392 P/2024 X3 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 75 observations 2024 Oct. 22 to 2025 Feb. 27. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.55 arc second. See an orbit in CBET 5485. Epoch = 2024 Sept. 7.0 TT T = 2024 Sept. 5.75792 +/- 0.00911 (m.e.) TT Peri. = 352.93191 +/- 0.00364 Node = 113.36502 +/- 0.00096 (2000.0) Inc. = 2.97222 +/- 0.00009 q = 2.6139600 +/- 0.0000301 AU e = 0.6266392 +/- 0.0000630 a = 7.0011627 +/- 0.0011834 AU n' = 0.05320456 +/- 0.00001349 P = 18.525 +/- 0.0046968 years (+/- 1.72 days) The predicted orbit for the 2043 return is as follows: T = 2043 Feb. 15.66391 TT Epoch = 2043 Jan. 31.0 TT Peri. = 352.94138 e = 0.6264064 Node = 113.36024 (2000.0) a = 6.9663807 AU Inc. = 2.97562 n'= 0.05360351 q = 2.6025949 AU P = 18.387 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2024/ 241224 088 (0.2+ 2.3+) 250218 G96 0.0 0.1+ 241022 V00 0.1+ 0.3+ 241225 088 (2.3- 1.3+) 250218 G96 0.1+ 0.0 241022 V00 0.4- 0.2+ 241225 088 1.7- 1.4+ 250218 G96 0.1- 0.1+ 241022 V00 0.3+ 0.1- 241225 088 0.9- 0.8+ 250218 A71 0.0 0.0 241022 V00 0.2+ 0.0 241225 088 0.2+ 0.2+ 250218 A71 0.4- 0.2+ 241114 G96 0.4- 0.2+ 241225 088 1.2- 1.4+ 250218 A71 0.2+ 0.1- 241114 G96 0.3- 0.1- 241225 F52 0.3+ 0.3- 250220 F52 0.2+ 0.0 241114 G96 0.1+ 0.3- 241225 F52 0.5+ 0.3- 250220 F52 0.1+ 0.1+ 241201 V00 0.0 0.1+ 241225 F52 0.1+ 0.2- 250220 F52 0.1+ 0.1+ 241201 V00 0.1- 0.0 241225 F52 0.2+ 0.2- 250220 F52 0.1+ 0.2+ 241201 V00 0.1- 0.2- 241226 L06 0.6- 1.1+ 250220 T08 0.6+ 0.2+ 241201 V00 0.0 0.2- 241226 L06 0.5- 0.3+ 250220 T05 0.7+ 0.3- 241208 F52 0.0 0.1- 241226 L06 0.1- 0.8+ 250220 T05 0.6+ 0.1+ 241208 F52 0.2+ 0.1- 241227 246 (1.0- 2.3+) 250220 T08 1.1- 0.8- 241208 F52 0.3+ 0.2- 241227 246 1.4+ 0.8+ 250220 T05 0.9- 0.4+ 241210 U94 0.3+ 0.0 241227 246 1.8- 0.2- 250220 T05 0.6- 0.5- 241210 U94 0.0 0.3- 241227 246 1.8- 0.6- 250222 T08 0.3+ 0.5- 241216 Z84 0.5+ 0.2- 241227 246 (2.3- 0.3-) 250222 T05 0.1- 0.7+ 241216 695 0.3+ 0.3- 241229 F51 0.8+ 0.0 250222 T05 1.4+ 1.1+ 241216 695 0.3+ 0.3- 241229 F51 0.0 0.2- 250222 T05 0.6+ 1.1- 241216 695 0.2+ 0.4- 241229 F51 0.6+ 0.3- 250225 T08 1.2- 0.4- 241221 691 0.3- 0.6+ 2025/ 250225 T08 0.8+ 0.2+ 241221 691 0.1- 0.7+ 250203 G96 0.2- 0.2- 250225 T08 1.0- 0.1+ 241221 691 0.2+ 0.1- 250203 G96 0.3+ 0.1- 250225 T08 0.1- 0.1- 241224 088 0.0 0.1- 250203 G96 0.2- 0.2+ 250227 215 0.0 0.6+ 241224 088 0.7- 1.4+ 250203 G96 0.4- 0.3+ 250227 215 0.3- 0.5+ 241224 088 0.1- 0.5+ 250218 G96 0.1+ 0.0 250227 215 0.4- 0.3+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2025 Mar. 2