Nakano Note (Nakano wa Kangaeru noda) NK 5391 C/2024 X2 (ATLAS)
The following improved orbital elements, by S. Nakano, are from 134 observations 2024 Dec. 12 to 2025 Feb. 26. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.43 arc second. The comet will pass 0.93 AU from Jupiter on 2026 Apr. 30 UT. See an orbit in CBET 5483. Epoch = 2025 July 24.0 TT T = 2025 July 7.89078 +/- 0.00789 (m.e.) TT Peri. = 315.78375 +/- 0.00202 Node = 122.52352 +/- 0.00103 (2000.0) Inc. = 109.22115 +/- 0.00027 q = 3.6762907 +/- 0.0000413 AU e = 0.9272901 +/- 0.0001112 1/a = +0.0197781 +/- 0.0000302 1/AU a = 50.56 AU P = 359.5 years origin = +0.020495 (Q= 6) future = +0.020399 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2024/ 241220 Q62 0.4- 0.5+ 250206 W68 0.1+ 0.2- 241212 W68 0.6- 0.4+ 241220 Q62 0.8- 0.2+ 250206 W68 0.3- 0.3+ 241212 W68 0.2+ 0.2- 241220 Q62 0.8- 0.2+ 250206 W68 0.3+ 0.2- 241212 W68 1.2+ 1.0+ 241221 W88 0.6- 0.3+ 250206 W68 0.6+ 0.5+ 241212 W68 0.5- 0.5+ 241221 W88 0.8- 0.2+ 250210 W68 0.7- 0.0 241212 W68 0.2+ 0.4- 241221 W88 0.7- 0.2+ 250210 W68 0.5- 0.1+ 241212 W68 1.0- 1.4- 241223 L09 0.3- 0.6- 250210 W68 0.3+ 0.5+ 241212 W68 0.4+ 0.4- 241223 L09 0.7+ 0.1- 250210 W68 0.1+ 0.4- 241213 X07 1.0+ 0.1- 241224 W68 0.4- 0.7- 250210 W68 0.4+ 0.0 241213 X07 0.7+ 0.4- 241224 W68 0.5+ 0.3+ 250210 W68 0.2+ 0.4- 241213 I47 0.2- 0.2- 241224 W68 0.4+ 0.2+ 250210 W68 0.7+ 0.0 241213 I47 0.2+ 0.4- 241224 W68 0.1+ 0.4+ 250210 W68 0.1+ 0.1- 241213 I47 0.2+ 0.0 2025/ 250211 M22 0.1- 0.3- 241213 W57 0.8+ 0.1+ 250103 M22 0.2- 0.3+ 250211 M22 0.3+ 0.0 241213 W57 1.1+ 0.2+ 250103 M22 0.2- 0.6- 250211 M22 0.1+ 0.1+ 241214 I47 0.3+ 1.1+ 250103 M22 0.7+ 0.7+ 250211 M22 0.3+ 0.1+ 241214 807 0.0 0.6+ 250103 M22 0.3- 0.4+ 250214 W68 0.3- 0.0 241214 807 0.1+ 0.1- 250107 X03 0.4- 0.1- 250214 W68 0.2+ 1.2+ 241214 807 0.0 0.0 250107 X03 0.1+ 0.1- 250214 W68 (1.0- 2.4-) 241214 807 0.2- 0.0 250107 X03 0.0 0.1- 250214 W68 0.1+ 0.5+ 241214 W89 (2.3+ 1.8-) 250107 X03 0.0 0.2- 250215 M22 0.0 0.7+ 241214 W89 (2.1+ 0.7-) 250117 W68 0.2+ 0.1- 250215 M22 0.1+ 0.1+ 241214 W89 (3.4+ 0.2-) 250117 W68 0.0 0.3+ 250215 M22 0.1- 0.0 241214 I47 0.2- 0.0 250117 W68 0.3- 1.0+ 250215 M22 0.1+ 0.4- 241215 Q62 0.3- 0.0 250117 W68 0.9+ 0.4- 250218 W68 0.0 0.1- 241215 Q62 0.4+ 0.3- 250117 W68 0.0 0.4- 250218 W68 0.1+ 0.1+ 241215 Q62 0.5- 0.4+ 250117 W68 0.0 0.5- 250218 W68 0.3+ 0.0 241215 Q62 0.0 0.4- 250117 W68 0.9- 0.7- 250218 W68 0.0 0.0 241215 Q62 0.0 0.8- 250117 W68 0.5- 0.6+ 250219 E62 0.2- 0.4- 241216 X03 0.9+ 0.1- 250121 W68 0.0 0.0 250219 E62 0.5- 0.1- 241216 X03 0.5+ 0.1- 250121 W68 0.6+ 0.2- 250219 E62 0.1+ 0.0 241216 X03 0.0 0.2- 250121 W68 0.3- 0.2+ 250219 E62 0.2- 0.1- 241216 X03 0.2- 0.1+ 250121 W68 0.4- 0.1+ 250219 E62 0.4- 0.0 241216 W88 0.3- 0.1- 250121 W68 0.3- 0.5- 250219 E62 0.1- 0.2- 241216 W88 0.3- 0.2- 250121 W68 0.3- 0.2+ 250222 W68 0.3+ 0.3+ 241219 L09 0.4- 0.6+ 250121 W68 0.2- 0.0 250222 W68 0.2- 0.1- 241219 L09 1.1- 1.6+ 250121 W68 0.0 0.0 250222 W68 0.2+ 0.2+ 241219 L09 0.2+ 0.1+ 250124 E62 0.0 0.0 250222 W68 0.2- 0.2- 241220 K95 0.1- 0.6+ 250124 E62 0.0 0.4+ 250223 M22 0.3- 0.1+ 241220 K95 0.6- 0.3+ 250124 E62 0.1- 0.3- 250223 M22 0.0 0.1+ 241220 K95 0.8- 0.4+ 250124 E62 0.2- 0.3- 250223 M22 0.2+ 0.2+ 241220 K95 0.4+ 0.1- 250125 W68 0.2+ 0.5- 250223 M22 0.1- 0.1+ 241220 K95 1.0- 0.3+ 250125 W68 0.0 0.0 250226 W68 0.3- 0.3- 241220 W68 0.7+ 0.1+ 250125 W68 0.4- 0.3+ 250226 W68 0.5+ 0.0 241220 W68 0.3- 0.2+ 250125 W68 0.2+ 0.1+ 250226 W68 0.3- 0.0 241220 W68 0.2- 0.4- 250202 W88 0.1+ 1.7- 250226 W68 0.3+ 0.1- 241220 W68 0.2+ 0.1- 250202 W88 0.2+ 0.4- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2025 Mar. 2