Nakano Note (Nakano wa Kangaeru noda) NK 5445 C/2024 G1 (Wierzchos)
The following improved orbital elements, by S. Nakano, are from 106 observations 2024 Apr. 7 to 2025 May 4. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.60 arc second. 2025 observations show the residual of +23" mainly for Right Ascension from an orbit in NK 5269 (= CH 2025). The comet has passed 2.92 AU from Uranus on 2017 Feb. 14 UT. See the previous orbits in CBET 5381 and NK 5269 (= CH 2025). Epoch = 2024 Oct. 17.0 TT T = 2024 Oct. 21.08917 +/- 0.00363 (m.e.) TT Peri. = 128.22717 +/- 0.00058 Node = 30.60140 +/- 0.00004 (2000.0) Inc. = 95.40007 +/- 0.00004 q = 3.9301393 +/- 0.0000137 AU e = 0.9675925 +/- 0.0000237 1/a = +0.0082459 +/- 0.0000060 1/AU a = 121.3 AU P = 1335 years origin = +0.008762 (Q= 8) future = +0.008580 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2024/ 240415 L27 0.4+ 0.1- 240613 F52 0.0 0.1- 240407 V00 0.5+ 0.3- 240419 213 (2.2- 1.7-) 240613 F52 0.1- 0.1- 240407 V00 0.3+ 0.0 240419 213 (1.0+ 2.7+) 240618 658 0.3- 0.8+ 240407 V00 0.2+ 0.1- 240430 U94 0.1- 0.5- 240618 658 0.3- 0.2+ 240407 V00 0.1+ 0.0 240430 U94 0.2+ 0.6- 240618 658 0.1- 1.2+ 240408 U94 0.1+ 0.2- 240430 U94 0.6+ 0.9- 240618 658 0.0 0.7+ 240408 U94 0.4+ 0.3- 240502 U94 0.2- 0.2- 240618 658 0.0 0.7+ 240409 G00 1.8+ 1.5- 240502 U94 0.1+ 0.2- 240710 L27 0.9- 0.2+ 240409 G00 (2.2+ 2.0-) 240503 Q11 0.6- 0.5- 240710 L27 0.1+ 1.5+ 240409 291 0.2+ 0.4+ 240503 Q11 0.6- 0.4- 240719 A77 1.2- 0.4- 240409 291 0.3+ 0.0 240503 Q11 0.6- 0.5- 240719 A77 0.1- 1.0+ 240409 291 0.7- 0.5+ 240509 C23 (0.6+ 7.3-) 240728 W62 1.2- 0.8+ 240409 V00 0.4+ 0.2- 240509 C23 (2.6+ 4.9-) 240728 W62 1.2- 0.7+ 240409 V00 0.1+ 0.1- 240509 L59 0.3- 0.0 240728 W62 1.1- 0.9+ 240409 V00 0.4+ 0.1- 240509 L59 0.4- 0.4- 240728 215 (2.0+ 0.3+) 240409 V00 0.4+ 0.8+ 240509 L59 0.2- 0.7- 240728 215 (2.1+ 0.5-) 240409 V00 0.2+ 0.1- 240509 L59 0.5- 1.4- 240728 215 1.6+ 0.5- 240409 V00 0.2+ 0.3- 240510 215 0.9+ 1.0- 240809 Y87 1.1+ 0.8- 240409 V00 0.3+ 0.2- 240510 215 0.3+ 0.7- 240809 Y87 0.4+ 0.7- 240412 291 0.3+ 0.0 240510 215 0.2- 0.4- 240809 Y87 0.3+ 0.8- 240412 I52 0.6+ 0.3+ 240510 903 0.1- 1.5- 2025/ 240412 734 0.4+ 0.5- 240510 903 0.5- 1.5- 250328 F51 0.3+ 0.3- 240412 I52 0.8+ 0.1- 240510 903 0.9- 1.7- 250328 F51 0.2+ 0.2- 240412 734 0.1+ 0.3- 240519 213 0.7- 0.3+ 250328 F51 0.3+ 0.2- 240412 I52 0.5- 0.1+ 240519 213 0.8- 0.2- 250419 C23 1.7- 0.1+ 240412 291 0.3+ 0.1+ 240519 213 (1.5+ 2.2-) 250419 C23 1.4- 1.6+ 240412 I52 0.1- 0.3- 240526 M38 0.5- 0.4+ 250424 G96 0.5+ 0.2+ 240412 734 0.4- 0.1- 240526 M38 0.2+ 0.2- 250424 G96 0.2- 0.2+ 240414 L06 0.4+ 0.1+ 240601 F52 0.2+ 0.0 250424 G96 0.3+ 0.2+ 240414 L27 0.2+ 0.2+ 240601 F52 0.3+ 0.1- 250424 G96 0.2- 0.6+ 240414 L06 0.2+ 0.0 240601 F52 0.3+ 0.1- 250428 F52 0.4+ 0.0 240414 L06 0.2+ 0.2- 240601 F52 0.3- 0.5- 250428 F52 0.3+ 0.2+ 240414 L27 0.1+ 0.1+ 240604 K77 0.5- 1.0- 250428 F52 0.1+ 0.3- 240414 L27 0.1+ 0.2+ 240604 K77 1.0+ 1.6- 250428 F52 0.3- 0.4- 240415 L27 0.2- 0.4+ 240605 213 (2.2+ 0.4+) 250430 215 0.8+ 0.9- 240415 L01 0.5+ 0.2+ 240605 213 0.1+ 0.2- 250430 215 0.6+ 0.6- 240415 L01 0.6+ 0.1- 240605 213 0.4+ 1.1- 250504 G96 0.8+ 0.9+ 240415 L01 0.2+ 0.3- 240613 F52 0.1+ 0.1- 250504 G96 0.2+ 1.1- 240415 L27 0.0 0.1+ 240613 F52 0.0 0.2- 250504 G96 0.2+ 1.4- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2025 Oct. 6