Nakano Note (Nakano wa Kangaeru noda) NK 5629 245P/WISE
The following improved orbital elements, by S. Nakano, are from 164 observations 2002 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 +/- 0.48 arc second. Residuals for 2026 September observations were +30" for Right Ascension and +22" for Declination from the prediction in NK 2849 (= HICQ 2026) with the delta-T correction = -0.025 day. See the previous orbit in NK 1971 (= HICQ 2010) and NK 2849. Epoch = 2026 Mar. 21.0 TT T = 2026 Mar. 31.12030 +/- 0.00169 (m.e.) TT Peri. = 316.70316 +/- 0.00079 Node = 316.66749 +/- 0.00003 (2000.0) Inc. = 21.17316 +/- 0.00008 q = 2.2058948 +/- 0.0000121 AU e = 0.4559176 +/- 0.0000030 a = 4.0543395 +/- 0.0000314 AU n' = 0.12073242 +/- 0.00000140 P = 8.164 +/- 0.0000949 years A1 = -0.097 +/- 0.175 A2 = -0.03406 +/- 0.00236 T = 2002 Jan. 19.70505 TT Epoch = 2002 Jan. 6.0 TT Peri. = 316.31697 e = 0.4652883 Node = 318.60274 (2000.0) a = 4.0189261 AU Inc. = 21.05954 n'= 0.12233171 q = 2.1489668 AU P = 8.057 years T = 2010 Feb. 4.57321 TT Epoch = 2010 Feb. 13.0 TT Peri. = 316.42120 e = 0.4660946 Node = 318.52857 (2000.0) a = 4.0074065 AU Inc. = 21.08958 n'= 0.12285956 q = 2.1395759 AU P = 8.022 years T = 2018 Feb. 8.64170 TT Epoch = 2018 Feb. 11.0 TT Peri. = 316.68002 e = 0.4577481 Node = 316.68027 (2000.0) a = 4.0390614 AU Inc. = 21.20148 n'= 0.12141809 q = 2.1901887 AU P = 8.117 years The predicted orbit for the 2034 return is as follows: T = 2034 May 26.56812 TT Epoch = 2034 June 7.0 TT Peri. = 316.88163 e = 0.4575098 Node = 316.54339 (2000.0) a = 4.0422379 AU Inc. = 21.20884 n'= 0.12127500 q = 2.1928744 AU P = 8.127 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2002/ 100903 G96 0.1+ 0.2+ 260708 194 0.1+ 0.0 020827 644 0.6+ 0.1- 100903 G96 0.2+ 0.2- 260709 F51 0.3+ 0.2+ 020827 644 0.1- 0.4+ 100903 G96 0.2- 0.1- 260709 F51 0.1+ 0.2+ 020827 644 0.7+ 0.2+ 100903 G96 0.1+ 0.3- 260709 F51 0.2+ 0.1+ 020904 644 0.5+ 0.3- 100908 372 0.5- 0.1- 260709 F51 0.3+ 0.2+ 020904 644 0.2+ 0.7- 100908 372 0.7- 0.1+ 260714 W62 1.5- 0.7+ 020904 644 0.1+ 0.4- 100908 372 0.0 0.2+ 260714 W62 0.7- 0.1- 020911 644 0.1+ 0.1+ 100908 152 (1.9- 2.2+) 260714 W62 0.2- 0.4- 020911 644 0.0 0.5+ 100908 152 (2.0+ 2.9-) 260714 Q14 (2.8- 1.8-) 020911 644 0.7+ 0.1- 100909 372 0.2- 0.1- 260714 Q14 0.7+ 0.7- 020912 644 0.3- 0.5- 100909 372 0.4- 0.6- 260719 F52 0.2+ 0.1+ 020912 644 0.0 0.2+ 100912 J01 0.3+ 0.2+ 260719 F52 0.1+ 0.1+ 020912 644 0.2- 0.2- 100912 J01 0.3+ 0.2- 260719 F52 0.1+ 0.3+ 2010/ 100912 J01 0.2+ 0.1- 260804 F51 0.1- 0.1+ 100602 C51 0.4- 0.5- 100913 474 0.1+ 0.3- 260804 F51 0.0 0.1+ 100602 C51 (0.4+ 2.1+) 100913 474 1.4+ 1.2- 260804 F51 0.0 0.0 100602 C51 0.3- 0.0 100913 474 0.1- 0.1+ 260804 F51 0.1+ 0.1+ 100602 C51 0.5+ 0.5- 100913 474 0.1- 0.4+ 260805 W94 0.6- 0.3- 100602 C51 0.5- 0.3+ 100913 J01 0.3- 0.1- 260805 W94 0.4- 0.2- 100603 C51 0.8- 0.7- 100913 J01 0.5- 0.2- 260805 W94 0.4- 0.4- 100603 C51 0.2+ 0.8+ 100913 J01 0.4- 0.5- 260808 F51 0.0 0.2+ 100603 C51 1.3+ 1.6- 101011 215 0.0 1.4- 260808 F51 0.0 0.1+ 100603 C51 (1.0- 2.2-) 2018/ 260808 F51 0.0 0.1+ 100603 C51 0.3+ 0.1+ 180513 Q62 1.7- 0.1+ 260808 215 0.3- 0.5- 100603 C51 0.4- 0.2+ 180513 Q62 (1.0- 2.0-) 260808 215 1.5- 1.7- 100605 C51 0.2+ 0.6+ 180618 G96 1.0+ 0.7- 260808 215 (1.6- 2.2-) 100605 C51 0.0 0.5+ 180618 G96 0.2- 0.4+ 260813 R14 0.3- 0.0 100606 C51 0.7- 1.4- 180618 G96 0.2+ 0.5+ 260813 R14 0.4- 0.7+ 100606 C51 0.5- 0.3- 180618 G96 0.2+ 0.2+ 260813 R14 0.6- 1.5+ 100606 C51 0.4- 0.3+ 180708 F51 0.0 0.1+ 260815 D29 0.0 0.3- 100606 C51 (0.1- 3.2+) 180708 F51 0.1+ 0.4+ 260815 D29 0.1- 0.2- 100606 291 0.2- 0.1+ 180708 F51 0.1+ 0.3+ 260815 D29 0.2- 0.6- 100606 291 0.2- 0.3+ 180708 F51 0.2+ 0.3+ 260818 J22 0.5+ 0.4+ 100606 291 0.6+ 0.0 180818 F51 0.2- 0.0 260818 J22 0.1- 0.5- 100606 C51 0.4+ 0.2- 180818 F51 0.1- 0.1+ 260818 J22 0.1- 0.7- 100606 C51 1.6- 1.2+ 180818 F51 0.2- 0.0 260821 T08 0.6- 0.6- 100606 C51 0.0 0.1+ 180818 F51 0.1- 0.0 260821 T08 0.4+ 0.1- 100606 C51 0.1- 0.4- 180906 G96 0.5- 0.4+ 260821 T08 0.1- 1.2- 100606 C51 0.8- 0.5- 180906 G96 0.0 0.1+ 260821 T08 0.1- 0.1- 100607 F65 0.9- 0.1- 180906 G96 0.0 0.0 260821 T08 0.2+ 0.3- 100607 F65 0.6- 0.3+ 180906 G96 0.1+ 0.5- 260821 T08 1.3+ 0.1- 100607 F65 0.2+ 0.4+ 180912 G96 0.2+ 0.5- 260909 F51 0.1- 0.0 100608 695 0.3+ 0.1- 180912 G96 0.2- 0.1+ 260909 F51 0.1- 0.0 100608 291 0.7- 0.4+ 180912 G96 0.1- 0.5- 260909 F51 0.1- 0.1+ 100608 695 0.4- 0.1- 180912 G96 0.3- 0.2- 260909 F51 0.1- 0.1- 100608 695 0.5- 0.4+ 181004 215 0.5- 0.1+ 260909 D29 0.1- 0.2- 100608 291 0.0 0.7+ 181004 215 0.0 0.0 260909 D29 0.6+ 0.2+ 100608 291 0.9+ 0.5+ 181004 215 0.1- 0.3- 260909 D29 0.9+ 0.0 100713 474 0.0 0.3+ 2026/ 260909 D29 0.1- 1.3+ 100713 474 0.1- 0.4+ 260517 X07 0.9+ 0.2- 260909 D29 1.0+ 0.0 100713 474 0.2+ 0.4+ 260517 X07 1.0+ 0.5- 260909 D29 1.9+ 0.9+ 100713 474 0.1+ 0.3+ 260619 Y87 (3.1- 6.0-) 260915 F51 0.0 0.0 100713 474 0.6- 0.0 260619 Y87 (8.0- 7.4-) 260915 F51 0.3- 0.1+ 100714 474 0.1+ 0.6+ 260619 Y87 (5.4- 6.2-) 260915 F51 0.1- 0.1- 100714 474 0.4+ 0.4- 260620 L27 (4.5- 2.2-) 260915 F51 0.2+ 0.4+ 100714 474 0.1- 0.3+ 260620 L27 (6.9- 3.8-) 260916 F51 0.0 0.0 100714 474 0.2+ 0.7+ 260620 F51 0.4+ 0.1+ 260916 F51 0.0 0.0 100716 204 0.4- 0.4- 260620 F51 0.4+ 0.1+ 260916 F51 0.2+ 0.2+ 100716 204 0.0 0.2+ 260620 F51 0.4+ 0.0 260916 F51 0.2- 0.1- 100821 I41 0.1+ 0.1- 260620 F51 0.4+ 0.1+ 100821 I41 0.0 0.0 260708 194 0.1- 0.3- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2026 Sept. 23