Nakano Note (Nakano wa Kangaeru noda) NK 5564 P/PANSTARRS (2026 B1 = 2013 G10 = 2018 X4)
The following improved orbital elements, by S. Nakano, are from 101 observations 2006 to 2026, including planetary perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas, Vesta, and non-gravitational effect of style II. The mean residual is +/- 0.38 arc second. The comet has made four appearances 2006-2026. See an orbit in NK 5536 (= CBET 5659). Epoch = 2026 Aug. 28.0 TT T = 2026 Aug. 14.73937 +/- 0.00095 (m.e.) TT Peri. = 72.72433 +/- 0.00022 Node = 104.65952 +/- 0.00020 (2000.0) Inc. = 4.02121 +/- 0.00004 q = 2.5122072 +/- 0.0000038 AU e = 0.3140118 +/- 0.0000009 a = 3.6621726 +/- 0.0000072 AU n' = 0.14063579 +/- 0.00000042 P = 7.008 +/- 0.0000207 years A1 = -1.820 +/- 1.623 A2 = +0.04576 +/- 0.05180 T = 2006 Mar. 21.90910 TT Epoch = 2006 Mar. 6.0 TT Peri. = 69.52175 e = 0.3319506 Node = 106.95470 (2000.0) a = 3.5894248 AU Inc. = 4.08241 n'= 0.14493283 q = 2.3979129 AU P = 6.800 years T = 2012 Dec. 22.78106 TT Epoch = 2012 Dec. 19.0 TT Peri. = 69.60087 e = 0.3399244 Node = 106.67328 (2000.0) a = 3.5608610 AU Inc. = 4.09224 n'= 0.14668022 q = 2.3504374 AU P = 6.719 years T = 2019 Sept.16.70399 TT Epoch = 2019 Oct. 4.0 TT Peri. = 69.87798 e = 0.3400402 Node = 106.62526 (2000.0) a = 3.5603907 AU Inc. = 4.09230 n'= 0.14670928 q = 2.3497146 AU P = 6.718 years The predicted orbit for the 2033 return is as follows: T = 2033 Aug. 22.40804 TT Epoch = 2033 Aug. 31.0 TT Peri. = 72.81846 e = 0.3120167 Node = 104.62070 (2000.0) a = 3.6686745 AU Inc. = 4.01928 n'= 0.14026209 q = 2.5239868 AU P = 7.027 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2006/ 200614 F51 0.0 0.1- 260120 W62 0.3+ 0.0 060106 645 0.2+ 0.2+ 200623 F51 0.2+ 0.1- 260120 185 0.4- 0.8+ 060106 645 0.0 0.1+ 200623 F51 0.3+ 0.0 260121 185 0.1+ 0.8+ 060106 645 0.0 0.0 200623 F51 0.3- 0.0 260122 Z24 0.7+ 0.3- 060107 645 0.1- 0.1- 2025/ 260122 Z24 0.6+ 0.2- 060107 645 0.1- 0.1- 251123 F52 0.0 0.0 260122 Z24 0.2+ 0.3- 060107 645 0.0 0.1- 251123 F52 0.5+ 0.2- 260122 Z24 0.4+ 0.0 2013/ 251123 F52 0.1+ 0.2+ 260122 M21 0.2- 0.6- 130415 F51 0.0 0.1+ 251130 F52 0.3- 0.0 260122 M21 0.2- 0.0 130415 F51 0.3- 0.3+ 251130 F52 0.1+ 0.1- 260123 Z24 0.0 0.1+ 130421 F51 0.0 0.2+ 251130 F52 0.0 0.0 260123 Z24 0.1- 0.1+ 130422 F51 0.1- 0.1+ 2026/ 260123 Z24 0.2+ 0.0 130422 F51 0.2- 0.8- 260113 D29 0.0 0.0 260123 Z24 0.1- 0.0 130503 F51 0.3+ 0.1- 260113 D29 0.5- 0.1+ 260124 D29 0.3+ 1.4- 130503 F51 0.1+ 0.1+ 260113 D29 0.1- 0.2+ 260124 D29 0.5- 0.1- 130503 F51 0.1+ 0.0 260114 G96 0.1+ 0.2+ 260124 D29 0.4- 0.9- 130503 F51 0.1+ 0.1+ 260114 G96 0.2+ 0.4+ 260125 N54 0.7- 0.2+ 2018/ 260114 G96 0.5- 0.1+ 260125 N54 0.2- 0.0 181214 F51 0.0 0.1+ 260114 G96 0.1+ 0.1+ 260126 D31 1.1- 0.5- 181214 F51 0.1- 0.1+ 260117 F52 0.2+ 0.2+ 260126 D31 1.3- 0.4- 181214 F51 0.2+ 0.0 260117 F52 0.0 0.2+ 260127 L06 0.3+ 0.4+ 181214 F51 0.1- 0.0 260117 F52 0.3+ 0.2- 260127 L06 0.6- 0.1- 2019/ 260117 F52 0.0 0.0 260127 L06 0.3- 0.3+ 190103 F51 0.0 0.1- 260117 F52 0.1+ 0.1- 260213 Q14 1.0+ 1.3+ 190103 F51 0.1- 0.0 260117 F52 0.1+ 0.1+ 260213 Q14 (1.2- 3.8+) 190103 F51 0.1- 0.0 260117 F52 0.2- 0.2+ 260312 215 0.8+ 0.4- 190106 T09 0.1- 0.4+ 260117 F52 0.1+ 0.1- 260312 215 1.6+ 0.6+ 190108 T09 0.1+ 0.2- 260117 F52 0.1+ 0.0 260312 215 0.2- 0.7- 190125 F51 0.1- 0.1- 260117 F52 0.1+ 0.1- 260313 R59 (0.9+ 4.5+) 190125 F51 0.4+ 0.4+ 260117 F52 0.1+ 0.1- 260313 R59 (0.6+ 4.1+) 190302 W84 0.5- 0.0 260117 M45 0.2+ 0.3+ 260313 R59 (0.8+ 3.6+) 2020/ 260117 M45 0.2+ 0.5+ 260313 X03 (2.1- 1.6-) 200520 F51 0.5- 0.1+ 260117 M45 0.3+ 0.3+ 260313 X03 (2.0- 1.8-) 200520 F51 0.1- 0.6+ 260118 F52 0.2+ 0.2- 260313 X03 (2.0- 1.9-) 200520 F51 0.1+ 0.1+ 260118 F52 0.1+ 0.1- 260313 X03 (2.1- 1.9-) 200524 F51 0.3+ 0.0 260119 X07 0.0 0.3- 260313 R59 0.0 0.7- 200524 F51 0.4- 0.4+ 260119 X07 0.0 0.0 260314 R59 1.3- 1.7+ 200524 F51 0.1+ 0.3- 260120 W62 0.2+ 0.1- 260314 R59 0.1- 0.4- 200614 F51 0.1- 0.1+ 260120 W62 0.3+ 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2026 Apr. 1