Nakano Note (Nakano wa Kangaeru noda) NK 5487 A/2024 U2
The following improved orbital elements, by S. Nakano, are from 89 observations 2024 Oct. 26 to 2025 Oct. 3. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.28 arc second. The comet has passed 3.85 AU from Jupiter on 2024 July 14 UT. Epoch = 2025 Dec. 31.0 TT T = 2026 Jan. 15.46114 +/- 0.03676 (m.e.) TT Peri. = 29.83540 +/- 0.00227 Node = 56.07169 +/- 0.00003 (2000.0) Inc. = 120.66711 +/- 0.00014 q = 8.1789542 +/- 0.0000681 AU e = 1.0030576 +/- 0.0000159 1/a = -0.0003738 +/- 0.0000019 1/AU origin = +0.000012 (Q= 8) future = -0.000035 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2024/ 241218 291 0.3- 0.3- 241228 L38 0.3+ 0.2+ 241026 V00 0.0 0.2- 241219 291 0.2+ 0.1- 241228 L38 0.2- 0.3+ 241026 V00 0.0 0.2- 241219 291 0.1- 0.1+ 241228 L38 0.1- 0.2- 241026 V00 0.2+ 0.0 241219 291 0.2+ 0.0 241229 587 0.1- 0.1+ 241026 V00 0.1+ 0.0 241220 291 0.3+ 0.2+ 241229 587 0.2- 0.2- 241112 O18 0.0 0.0 241220 291 0.4+ 0.2+ 241229 587 0.1- 0.1+ 241112 O18 0.1- 0.1- 241220 291 0.3- 0.1- 241231 U94 0.3- 0.3+ 241112 O18 0.0 0.1+ 241221 691 0.0 0.0 241231 U94 0.1- 0.1+ 241121 G96 0.5+ 0.8- 241221 691 0.0 0.4+ 2025/ 241121 G96 0.4+ 0.6- 241221 691 0.5+ 0.3+ 250812 W62 0.7+ 0.3+ 241121 G96 0.5- 0.1+ 241222 691 0.1- 0.2+ 250812 W62 0.6+ 0.6+ 241121 F51 0.1- 0.1- 241222 691 0.1- 1.0- 250812 W62 0.6+ 0.4+ 241121 F51 0.0 0.1+ 241222 691 0.5- 0.2+ 250822 F51 0.3+ 0.2- 241121 F51 0.1- 0.2- 241223 F52 0.1- 0.0 250822 F51 0.3- 0.2+ 241128 F51 0.0 0.1- 241223 F52 0.0 0.3+ 250822 F51 0.3+ 0.3- 241128 F51 0.0 0.1- 241223 F52 0.1- 0.1+ 250831 215 0.1+ 0.3- 241128 F51 0.1+ 0.1- 241223 F52 0.1- 0.2- 250831 215 0.1+ 0.4- 241128 F51 0.1+ 0.0 241224 691 0.0 0.1+ 250831 215 0.1- 0.1- 241128 F51 0.1- 0.2+ 241224 691 0.4- 0.4+ 250907 F52 0.1- 0.1- 241128 F51 0.0 0.1- 241224 691 0.6+ 0.9+ 250907 F52 0.2- 0.1+ 241205 G96 0.2+ 0.0 241226 691 (0.0 2.2+) 250907 F52 0.0 0.1+ 241205 G96 0.2+ 0.0 241226 691 1.3+ 0.4- 250907 F52 0.0 0.2- 241205 G96 0.1+ 0.2+ 241226 691 0.0 0.4- 251001 G96 0.1- 0.1+ 241205 G96 0.3- 0.3+ 241226 F51 0.1- 0.1- 251001 G96 0.1+ 0.2- 241205 F51 0.3- 0.0 241226 F51 0.3- 0.1- 251001 G96 0.3+ 0.2- 241205 F51 0.1- 0.0 241226 F51 0.3- 0.0 251001 G96 0.3+ 0.0 241205 F51 0.1- 0.1- 241226 F51 0.0 0.0 251003 F51 0.2- 0.1+ 241205 F51 0.1- 0.1- 241227 X03 0.4- 0.2+ 251003 F51 0.2- 0.1+ 241207 W84 0.3- 0.0 241227 X03 0.2- 0.3- 251003 F51 0.2- 0.1+ 241218 291 0.0 0.5- 241227 X03 0.2- 0.2- 251003 F51 0.2- 0.0 241218 291 0.2- 0.5+ 241227 X03 0.3- 0.1+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2025 Oct. 21