Nakano Note (Nakano wa Kangaeru noda) NK 5276 P/NEAT-PANSTARRS (2024 N6 = 2002 QU151)
The following improved orbital elements, by S. Nakano, are from 66 observations 2002 to 2024. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.44 arc second. The comet has passed 0.38 AU from Jupiter on 1991 June 3 UT. Also comet will pass 0.71 AU on 2026 June 27 and 0.55 AU on 2051 Jan. 7 UT from Jupiter. See an orbit in CBET 5426 (same orbit). Epoch = 2024 May 10.0 TT T = 2024 May 19.15645 +/- 0.00109 (m.e.) TT Peri. = 1.44687 +/- 0.00059 Node = 324.07491 +/- 0.00017 (2000.0) Inc. = 11.36469 +/- 0.00006 q = 1.6777942 +/- 0.0000039 AU e = 0.5504216 +/- 0.0000010 a = 3.7319278 +/- 0.0000124 AU n' = 0.13671124 +/- 0.00000068 P = 7.209 +/- 0.0000358 years T = 2002 Sept. 3.92009 TT Epoch = 2002 Sept. 3.0 TT Peri. = 1.25292 e = 0.5471001 Node = 324.16139 (2000.0) a = 3.7503402 AU Inc. = 11.34129 n'= 0.13570570 q = 1.6985286 AU P = 7.263 years [ T = 2009 Dec. 3.57038 TT Epoch = 2009 Nov. 25.0 TT Peri. = 1.26578 e = 0.5487151 Node = 324.15829 (2000.0) a = 3.7448732 AU Inc. = 11.36186 n'= 0.13600297 q = 1.6900048 AU P = 7.247 years ] [ T = 2017 Feb. 25.12006 TT Epoch = 2017 Feb. 16.0 TT Peri. = 1.29960 e = 0.5495924 Node = 324.15045 (2000.0) a = 3.7375655 AU Inc. = 11.35621 n'= 0.13640204 q = 1.6834277 AU P = 7.226 years ] The predicted orbit for the 2031 return is as follows: T = 2031 Dec. 2.27973 TT Epoch = 2031 Nov. 30.0 TT Peri. = 5.86698 e = 0.5224243 Node = 321.81561 (2000.0) a = 3.8765431 AU Inc. = 11.83611 n'= 0.12913297 q = 1.8513430 AU P = 7.633 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2002/ 240418 W84 0.0 0.2- 240711 T14 0.4+ 0.4+ 020706 644 0.6+ 0.3- 240419 W84 0.0 0.2+ 240711 T14 0.4+ 0.3+ 020706 644 0.1+ 0.5+ 240419 W84 0.1- 0.5- 240711 T14 0.3+ 0.3+ 020706 644 0.6- 0.2- 240419 W84 0.1+ 0.1- 240713 T14 0.0 0.0 020716 644 0.7+ 0.4+ 240419 W84 0.1- 0.1- 240713 T14 0.1+ 0.0 020716 644 0.1- 0.5- 240709 F52 0.2+ 0.1- 240713 T14 0.1+ 0.1+ 020716 644 0.1- 0.2- 240709 F52 0.1+ 0.1+ 240714 L06 0.7- 0.0 020818 644 0.3+ 0.1+ 240709 F52 0.2+ 0.4+ 240714 L06 0.8- 0.1+ 020818 644 0.3- 0.1- 240710 M45 0.5+ 0.1+ 240718 X07 (5.8- 2.1-) 020818 644 0.0 0.1- 240710 L01 0.6- 0.1- 240718 X07 (5.5- 1.8-) 020829 644 0.3- 0.4- 240710 M45 0.3- 0.2- 240725 Z84 1.0+ 0.6+ 020829 644 0.1- 0.2- 240710 L01 1.0- 0.2- 240725 Z84 0.0 0.4- 020829 644 0.2+ 0.3- 240710 L01 0.8- 0.3- 240725 L34 0.3+ 1.6- 020902 608 0.1+ 0.0 240710 L01 0.4+ 0.6+ 240729 Y66 0.3+ 0.6+ 020902 608 0.5- 0.6- 240710 M45 0.0 0.4- 240729 Y66 0.5+ 0.9+ 020902 608 0.1+ 0.3+ 240710 M45 0.7+ 0.5- 240729 Y66 0.2- 0.5+ 020912 608 0.4- 0.4+ 240710 106 1.1- 0.1- 240801 W62 0.3+ 0.4+ 020912 608 0.6+ 0.2+ 240710 106 0.0 0.0 240801 W62 0.5+ 0.5+ 020912 608 0.1- 0.3+ 240710 106 0.9+ 0.4+ 240801 W62 0.6+ 0.3+ 2024/ 240710 106 0.0 0.9- 240802 658 0.0 0.9- 240418 W84 0.0 0.3- 240711 J95 0.2- 0.0 240802 658 0.5- 0.3- 240418 W84 0.3+ 0.1+ 240711 J95 1.4- 0.1+ 240802 658 0.1- 0.8+ 240418 W84 0.2+ 0.2- 240711 Z84 0.7- 0.1+ 240418 W84 0.1- 0.3- 240711 Z84 0.3- 0.1+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2024 Aug. 4